1 mg-500 g Test Weight Set Button Form Polished Stainless Steel, Aluminium Case - KERN

Take advantage of gentle, cotton handling and reliable contamination protection to extend the service life of precision weights; order directly from Metav Werkzeuge or contact our consultants for tailored advice. Gloves KERN 317-280 — Cotton gloves for protecting test weights up to 2 kg The Gloves KERN 317-280 are designed to protect test weights and precision masses from finger grease and moisture during everyday handling in workshops and calibration labs. Cotton construction for gentle handling Protects test weights from finger grease Suitable for test weights up to 2 kg Lightweight, reusable pair for workshop use Preserve measurement accuracy with clean handling Handling delicate masses without contamination helps to maintain precision and reduces the need for frequent recalibration. The KERN cotton gloves provide an effective barrier against finger grease and light moisture, keeping surfaces free of oils that can alter measured mass. By preventing direct contact, the gloves contribute to consistent readings and minimise the risk of measurement drift, supporting reliable quality control in routine metrology tasks. Practical protection for everyday workshop routines Lightweight and easy to store, this pair is tailored for straightforward use in production and service environments. The simple design allows quick application while handling small test weights, helping to maintain workflow speed without compromising care. Suitable for masses up to 2 kg, the gloves enable safe manipulation of common calibration weights, combining protection with operational convenience to keep processes efficient and repeatable. Why cotton is the right material for delicate tools Cotton fibres offer a soft, absorbent contact surface that decreases the transfer of oils and residues onto sensitive metal surfaces. The natural fabric reduces abrasion risk compared with harsher materials, providing gentle handling that preserves finish and mass integrity. At an almost negligible net weight, the gloves do not affect the handling ergonomics of small weights but do increase confidence in routine handling and storage practices. Contact Metav Werkzeuge for personalised advice or to secure the KERN cotton gloves from our Emmerich stock; our team will assist with product details and suitability for specific calibration needs. Technical data Article number: 317 SKU: 317-280 Manufacturer: KERN Facts Net weight: 0.01 kg Suitable for test weights up to 2 kg GTIN: 4045761003866 Special features Material: cotton Protects test weights from finger grease and moisture Supplied as one pair Segment: Test weight accessories FAQ Are these gloves suitable for precision balances? The KERN 317-280 gloves are intended to protect precision masses and are suitable for handling small test weights used with precision balances. How do the gloves protect test weights? The cotton fibres of the gloves reduce oil and moisture transfer, helping to keep the surface of test weights clean and preserving measurement accuracy. Can the gloves be used for weights above 2 kg? The gloves are specified as ideal for handling test weights up to 2 kg; heavier items may require different handling methods or protective equipment. What material are the gloves made from? The gloves are made from cotton, chosen for its gentle contact and absorbent properties. Is the KERN 317-280 pair reusable? The gloves are designed for repeated use in workshop routines, offering lightweight, practical protection for daily handling of test weights. Metav Werkzeuge — Emmerich am Rhein, Germany · eMail: info@metav-werkzeuge.com · Phone: +49 2822 7131930 · WhatsApp: +49 170 2837271

The padded wooden case combines protective storage, precise compatibility with 1 g single calibration weights and a compact form factor for efficient workshop handling. Order the wooden case 317-010-100 directly via Metav Werkzeuge or ask our consultants if needed. Wooden case 317-010-100 — padded storage for 1 g single weights (KERN) A padded Wooden case 317-010-100 designed for the safe storage and transport of single calibration weights in E1, E2 and F1 classes, suitable for compact/button-style weights. Padded interior for protected storage Designed for 1 g single calibration weights Compatible with KERN 307/316/317/326/327/329 Compact wooden construction for workshop use Preserve calibration with cushioned, durable storage The padded interior and solid wood construction protect delicate single calibration weights from shocks and abrasion, helping to preserve their calibration over time. By keeping each weight securely seated, the case reduces the risk of surface damage that can alter mass values. This design is particularly valuable for workshops and service technicians who handle 1 g weights frequently and need to maintain traceability for quality control. Reliable compatibility that simplifies handling and inventory Specified for use with nominal 1 g weights and suitable for calibration classes E1, E2 and F1, the case ensures organised storage of high-precision weights. Compatibility with a range of KERN single-weight models (307, 316, 317, 326, 327, 329) means fewer handling errors and clearer inventory management. For procurement and inspection workflows, this reduces time spent verifying which case fits which weight and supports consistent measurement practice. Compact design for secure transport and practical workshop use The compact wooden format delivers a balance of tactile quality and practical protection, making it straightforward to carry between the workshop bench and calibration station. The lightweight construction keeps added mass to a minimum while the internal padding prevents contact between items, reducing contamination and wear. As a storage solution, it supports efficient routines in maintenance and mobile calibration work without compromising the careful handling required for fine weights. Contact Metav Werkzeuge for tailored advice on using the 317-010-100 wooden case and to confirm suitability for measurement procedures at your site Technical data Article number: 317-010-100 Manufacturer: KERN GTIN: 4045761003538 Country of origin: DE Facts Weight: 0.13 kg Nominal value compatibility: 1 g Calibration classes: E1, E2, F1 Tariff code: 84239090 Materials & special features Material: wood Padded interior Compatible with single weights KERN 307, 316, 317, 326, 327, 329 Product category: wooden case for single weights FAQ What size and weight class of calibration weights fit this case? The wooden case 317-010-100 is intended for 1 g single calibration weights and is suitable for calibration classes E1, E2 and F1. Is the case suitable for transport between sites? Yes. The padded interior and compact wooden construction provide protection for single weights during transport and handling within service routines. Which KERN weight models are compatible with the case? Compatibility is specified for KERN models 307, 316, 317, 326, 327 and 329, all in the compact/button-style single-weight format. KERN · Origin: Germany · Contact: info@metav-werkzeuge.com / +49 2822 7131930

Take advantage of secure, padded storage combined with precise compatibility for 2 g calibration masses to protect measurement accuracy and speed up handling. Order the case directly via Metav Werkzeuge or consult our specialists for application advice. KERN 317-020-100 Wooden case for single weights — padded, for 2 g (E1–F1) The KERN 317-020-100 is a wooden case designed for safe storage and organised handling of compact single weights used in high-accuracy calibration tasks. Padded wooden case for single weights Designed for 2 g E1–F1 calibration masses Fits KERN 307, 316, 317, 326, 327, 329 Protective interior for secure storage Secure storage that preserves calibration accuracy The padded interior and precisely formed compartments reduce movement and protect the surface and edges of high-precision single weights, which is essential for maintaining class tolerances. By keeping masses in a dedicated wooden case, handling errors are minimised and regular re-calibration intervals can be better preserved. The robust padding acts as a buffer during routine transport within a laboratory or workshop, supporting reliable measurement results and reducing the risk of costly replacement. Compact design tailored for traceable workflows Designed specifically for 2 g nominal masses in the E1–F1 accuracy range, the case supports the compact format common to button/compact weights. Clear compartmentation and compatibility with KERN serials ensure quick identification and efficient organisation of weights in a calibration set. The case therefore delivers operational benefits: faster inventory checks, streamlined exchange within calibration procedures, and improved traceability of individual masses through orderly storage and handling. Practical construction for workshop and laboratory use Made from wood and finished with a protective, padded lining, the case combines tactile durability with lightweight convenience for bench-top use. Originating from Germany, the design focuses on long-term protection rather than decorative features, which helps laboratories and service technicians keep working sets ready for measurement tasks. The compact footprint saves bench space while the tailored interior prevents abrasion and contact damage, helping to extend the service life of precision weights. Order the KERN wooden case 317-020-100 via Metav Werkzeuge in Emmerich for reliable storage solutions — for application queries and fast assistance contact info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 317-020-100 Manufacturer: KERN GTIN: 4045761003552 Facts Nominal value suitability: 2 g Weight: 0.13 kg Tariff number: 84239090 Origin: DE Special features Material: Wood Padding: Padded interior Suitable for classes: E1–F1 Compatible with: KERN 307, 316, 317, 326, 327, 329 Product type: Wooden case for single weights FAQ Is this case suitable for high-accuracy laboratory weights? The KERN 317-020-100 wooden case is designed for high-accuracy single weights in classes E1–F1, providing padded protection appropriate for laboratory storage. Which nominal values fit this case? This case is specified for 2 g nominal single weights and matches the compact/button format used for that mass. Will the case protect the weights during transport between benches? The padded interior and snug compartments of the wooden case reduce movement and surface contact, offering effective protection during short internal transfers. Which KERN weights are compatible with the case? Compatibility is indicated for KERN single weights: 307, 316, 317, 326, 327 and 329. Can the case be used for other manufacturers' compact weights? Use with other manufacturers’ weights depends on dimensions; the case is optimised for KERN compact formats and may not provide an exact fit for all third‑party items. KERN — Germany | Distributor: Metav Werkzeuge, Emmerich am Rhein | Email: info@metav-werkzeuge.com | Tel: +49 2822 7131930

Benefit from a compact, durable plastic case that protects single calibration weights from 1 g to 2 g to accuracy class E2, ensuring organised storage and safe handling in the workshop or laboratory; order directly via Metav Werkzeuge or consult our team for application advice. KERN 317-020-400 Plastic case — protective storage for single calibration weights, 1 g–2 g (class E2) KERN 317-020-400 is a robust plastic enclosure designed for the safe storage and transport of single calibration weights in the compact/button format, optimised for precision environments. Protective plastic case for single weights Fits compact/button weights 1 g–2 g Suitable for accuracy class E2 Lightweight 20 g protective storage Secure storage that preserves calibration integrity The plastic case provides a compact and stable environment for individual calibration weights, reducing handling-related errors and contamination. Built for single-weight storage in the button/compact configuration, the enclosure keeps each weight separated and secured to prevent surface damage that could affect measurement accuracy. The case’s durable plastic construction offers a balance of impact resistance and low weight, making it suitable for bench storage and controlled transport within calibration workflows. By maintaining the condition of the weights, the housing supports consistent measurement performance for instruments that rely on small nominal masses. Integrates cleanly into calibration and metrology workflows Designed for laboratories and service technicians working with fine masses, the case streamlines organisation and inventory control for weights in the 1 g–2 g range and E2 tolerance class. The compact footprint enables efficient use of bench space and simple stacking in storage cabinets or calibration kits. Clear labelling opportunities and the standardised form factor of the enclosure aid traceability in routine checks and recalibration cycles. The practical design helps to minimise downtime: weights remain accessible and test-ready, supporting faster setup and repeatable measurement procedures in quality-critical environments. Practical advantages for everyday workshop and service use For technicians who move calibration sets between workstations, the lightweight and resilient housing reduces the risk of accidental damage while remaining easy to carry. The case’s construction is suited to regular handling and provides basic protection against dust and light mechanical impact. As part of a broader supply strategy, such enclosures help to centralise equipment storage and improve the organisation of small nominal masses, contributing to dependable process control in production, service, and inspection routines. The product’s compatibility with standard compact/button masses simplifies integration with existing calibration kits and holders. Choose the KERN 317-020-400 Plastic case for reliable E2 storage — contact Metav Werkzeuge in Emmerich for tailored advice or to arrange supply via info@metav-werkzeuge.com and +49 2822 7131930 Technical data SKU: 317-020-400 Manufacturer: KERN GTIN: 4045761081116 Origin: Germany Material: Plastic Facts Nominal values: 1 g–2 g Accuracy class: E2 Net weight: 0.02 kg Tariff code: 84239090 Special features Case for single calibration weights (button/compact) Product category: Calibration weight cases & etuis Product group: Plastic case for single weights FAQ What sizes of weights fit this case? The case is made for single calibration weights with nominal values from 1 g to 2 g in the compact/button format. Is the housing suitable for accuracy class E2 weights? Yes, the enclosure is specified for storage of weights to accuracy class E2, helping to preserve their condition between uses. Which material is used for the case and what benefits does it provide? The case is manufactured from durable plastic, offering lightweight protection against dust and minor impacts while remaining easy to handle. Can the case be integrated into existing calibration kits? The compact/button form factor is compatible with standard kits and supports organised storage in calibration workflows. Does the product include individual compartments for each weight? The case is designed for single-weight storage in the button/compact format to keep masses separated and protected. KERN — Germany

Take advantage of a robust combination of secure storage and precise organisation for calibration weights: a padded wooden case that protects delicate 5 g single weights and keeps high-class instruments ready for use. Order the KERN 317-030-100 wooden case directly via Metav Werkzeuge or ask our consultants if needed. KERN 317-030-100 Wooden Case for 5 g Single Weights — Padded, for Classes E1–F1 KERN 317-030-100 is a purpose-made wooden case for safe storage and transport of single calibration weights in knob/compact form, intended for use in workshops and laboratories Padded wooden case for calibration weights Designed for 5 g single weights E1–F1 Compatible with knob/compact weight form Fits KERN models 307, 316, 317, 326, 327, 329 Protect sensitive weights and maintain calibration reliability The padded interior and solid wooden case construction reduce the risk of impact damage and contamination, helping to preserve the nominal mass of delicate 5 g calibration pieces. For high-precision classes such as E1–F1, uncontrolled knocks or dust can affect measurement results; this storage solution minimises those risks and supports consistent weighing outcomes. The internal padding also prevents abrasion between weights, which contributes to longer intervals between recalibrations and lower downtime for quality checks. Storage designed for official calibration classes and traceability The case is dimensioned for knob/compact design single weights and keeps each weight separated and identifiable, aiding traceability in calibration routines. By organising weights by nominal value and class, the case streamlines handling during audits and routine checks. The clear fit for recognised KERN series units ensures a standardised approach to storage in quality-controlled environments and simplifies inventory checks during ISO- or internal-audit procedures. Practical handling for workshop and laboratory workflows Made from durable wood, the case combines a tactile, classic finish with functional protection, making it suitable for bench-top storage or secure transport between test stations. The form factor and lightweight construction (approx. 0.13 kg) allow technicians to move sets quickly without adding unnecessary bulk to instrument cases. The padded compartments cut down on setup time by keeping frequently used single weights immediately accessible and protected, improving operational efficiency. Compatibility with KERN single weights and ease of organisation Specifically matched to a range of KERN single weights, the case accepts models in the 307–329 series and their knob/compact shapes, supporting consistent handling across a set of precision instruments. This compatibility means fewer custom storage solutions and a consistent standard for workshops that rely on KERN weights for verification tasks. The case supports orderly storage that reduces handling errors and strengthens the overall calibration workflow. Contact Metav Werkzeuge for availability of the KERN 317-030-100 wooden case and expert advice from our Emmerich team via info@metav-werkzeuge.com or call +49 2822 7131930 Technical data SKU: 317-030-100 Manufacturer: KERN GTIN: 4045761003576 Country of origin: Germany Facts Nominal weight suitability: 5 g Weight of case: 0.13 kg Suitable weight classes: E1–F1 Tariff number: 84239090 Special features Material: wood Interior: padded Compatible with knob/compact single weights Fits KERN models 307, 316, 317, 326, 327, 329 FAQ How many weights fit in the case? The case is dimensioned for single 5 g weights in knob/compact form; capacity depends on the individual compartment layout for the chosen set Is the interior cushioned to protect weights during transport? Yes, the wooden case includes a padded interior to protect precision weights from shocks and abrasion during handling Can this case be used for other nominal values beyond 5 g? The design is optimised for 5 g single weights in knob/compact form; other sizes may not sit securely without modification Does the case meet requirements for storage of E1 class weights? The case provides protective storage suitable for E1–F1 class weights and supports conditions that help preserve mass stability between calibrations Which KERN models are explicitly compatible with this case? Compatibility is declared for KERN single weights in the 307, 316, 317, 326, 327 and 329 series Metav Werkzeuge, Emmerich am Rhein, Germany — Email: info@metav-werkzeuge.com — Tel: +49 2822 7131930 — WhatsApp: +49 170 2837271

Take advantage of a compact, durable solution that protects single calibration weights while keeping handling efficient; the combination of robust plastic construction and tailored fit for 5 g weights supports reliable, repeatable storage and transport. Order the case via Metav Werkzeuge or consult our specialists for supply and technical clarification. KERN 317-030-400 Plastic weight case — Protective case for 5 g E2 single weights A KERN 317-030-400 Plastic weight case designed to store and protect single calibration weights in button/compact form, suitable for class E2 calibration use For 5 g single weights (button/compact) Suitable for calibration class E2 Durable plastic protection for weights Compact, lightweight case – 0.02 kg Secure, compliant storage that preserves calibration integrity The compact case offers a tailored pocket for a 5 g nominal weight in button or compact format, ensuring secure placement during storage and transport. By limiting movement and exposure, the design assists in preserving the defined calibration condition required for E2 class weights. The robust plastic shell provides a barrier against dust and incidental contact, reducing the frequency of unnecessary recalibrations and supporting consistent measurement performance in the workshop or laboratory. Practical handling for routine calibration workflows Lightweight construction and a concise footprint make the case convenient to handle and store on benches or in instrument drawers. The case’s dimensions and internal form factor accommodate the typical single-weight format used for spot checks and portable verification, simplifying the logistics of daily calibration tasks. Because the container minimises handling stress and protects the weight from contaminants, procurement of a purpose-made case contributes to operational efficiency and fewer disruptions to measurement routines. Suitable for professionals seeking reliable accessory equipment As a complement to precision balances and test weights, this protective case supports established quality processes by reducing risk to delicate mass artefacts. The combination of a snug fit for single weights, plastic durability and low mass makes it a pragmatic choice for technicians and quality managers who prioritise tool protection and repeatable results. Recommended where calibrated masses are transported between departments or stored with other metrology accessories to maintain traceability and condition. Contact Metav Werkzeuge in Emmerich for tailored supply of the KERN 317-030-400 and expert advice on compatible calibration accessories Technical data SKU: 317-030-400 Manufacturer: KERN GTIN: 4045761081338 Country of origin: DE Customs tariff no.: 84239090 Core specifications Nominal weight compatibility: 5 g Calibration class compatibility: E2 Mass of case: 0.02 kg eCl@ss: 21100103 Materials and features Material: Plastic For single weights, button/compact design Product group: Test weights — protective case Asset image available (product thumbnail) FAQ What weight size does the case accommodate? The case is designed to hold a single 5 g nominal weight in a button/compact format, offering a secure fit for that size. Is the case suitable for E2 calibration class weights? Yes, the design and fit are intended for use with E2 class single weights and support the preservation of calibration condition. What material is the case made from and how does this help? The case is made from durable plastic, which protects against dust and minor impacts while remaining lightweight for easy handling. Can the case be used for other weight formats? The internal form is optimised for button/compact single weights; alternative formats may not sit securely and thus are not recommended with this case. Does the case include any padding or inserts for shock protection? The internal contour secures the weight in place; additional damping is not specified for this model, so care should be taken during transport. KERN — Address: not provided — Contact: not provided

Combining a padded wooden interior, a precise fit for 10 g E1–F1 single weights and a lightweight, compact design, this case protects calibration standards while simplifying storage and transport; order the KERN 317-040-100 wooden case directly via Metav Werkzeuge or ask our consultants for tailored advice. KERN 317-040-100 — Wooden case for single calibration weights, padded, 10 g (E1–F1) The KERN 317-040-100 is a wooden etui designed to store and protect single calibration weights in workshop and laboratory environments, suited to button/compact formats. Padded wooden case for single calibration weights Fits 10 g button/compact nominal weights Compatible with KERN 307, 316, 317, 326, 327, 329 Durable natural wood construction Secure storage that preserves calibration integrity A compact, padded interior ensures individual standards remain free from dust, knocks and handling wear, which helps maintain their precision over time. The tailored cavity for a single 10 g nominal weight minimises movement during transport and reduces the risk of abrasion or contamination. By protecting the weight’s surface and edges, the case supports repeatable measurement results and extends the service life of high-class artefacts classified E1–F1. Clear compatibility and space-saving organisation for busy benches The etui’s compact design streamlines storage in instrument cabinets or inspection trolleys while keeping the single weight immediately identifiable and accessible for verification procedures. Compatibility with a range of KERN single-weight models is specified for reliable fitment: the case accepts models 307, 316, 317, 326, 327 and 329. At a mass of 0.13 kg, the case adds negligible load for mobile calibrations and makes handling during routine checks straightforward and efficient. Natural materials meeting workshop demands with a professional finish Constructed from solid wood, the case combines tactile quality with functional protection; the material choice offers a stable housing that resists minor impacts and provides insulating separation from metal tool trays. The product’s origin is made in Germany, reflecting manufacturing standards appropriate for metrological accessories. A padded lining delivers an immediate benefit to traceability workflows by protecting the calibrated surface and supporting consistent measurement practice. For reliable storage of high-class single weights, secure the KERN wooden case through Metav Werkzeuge or contact our specialists at info@metav-werkzeuge.com or +49 2822 7131930 for precise application advice. Technical data Article number: 317 SKU: 317-040-100 GTIN: 4045761003590 Manufacturer: KERN Facts Weight: 0.13 kg Material: Wood Origin: DE Commodity code: 84239090 Special features Padded interior For nominal value: 10 g For classes: E1–F1 Fits models: KERN 307, 316, 317, 326, 327, 329 FAQ What size and weight class is this case intended for? The KERN 317-040-100 wooden case is designed specifically for a single 10 g nominal calibration weight classified for use in classes E1–F1. Which weight models fit the etui? This wooden etui fits the listed KERN single-weight models 307, 316, 317, 326, 327 and 329, ensuring a secure hold for button/compact designs. How does the case protect the calibration weight? Protection is provided by a padded interior and a tailored cavity that prevents movement, reducing abrasion and contamination and helping to preserve the weight’s calibration condition. Is the material suitable for workshop environments? The case is made from wood, offering a durable housing with a professional finish and insulating properties suitable for instrument benches and transport. What is the product’s mass for transport planning? The empty case weighs 0.13 kg, adding minimal load when included in mobile calibration kits or inspection trolleys. KERN, Germany — Contact: not provided

Protect calibration single weights reliably with a lightweight plastic case designed for 10 g E1/E2 weights; the compact button-style construction keeps weights secure during storage and transport. Benefit from robust plastic material and a minimal 0.02 kg mass for easy handling. Order the KERN case directly via Metav Werkzeuge or consult our specialists if further guidance is required. KERN Plastic Case for Calibration Weights 317-040-400 — compact design for 10 g E1/E2 single weights A Plastic case for single weights that provides secure storage and safe transport for 10 g calibration weights used in class E1 and E2 applications. Compact design for single weights Suitable for class E1 and E2 weights Lightweight, approx. 0.02 kg case Button/compact format for easy stacking Protects weights and reduces handling risk The compact construction offers secure storage and minimises the chance of contamination or mechanical damage to delicate calibration weights. By housing single weights in a tailored button/compact recess, the holder prevents surface contact and abrasion that would otherwise affect calibration integrity. The plastic material balances low mass with sufficient rigidity, enabling safer manual handling and straightforward transport between workbench and storage without adding significant load to shipping or measurement workflows. Conserves accuracy with class-compatible organisation Organised storage supports traceable measurement procedures; the case is specified for 10 g nominal values and compatibility with E1/E2 classes, which makes it suitable for high-precision laboratory and industrial environments. Using a purpose-built container reduces the need for repeated handling and helps preserve the calibration condition of weights that are frequently checked. The compact format also simplifies inventory management by making each weight immediately recognisable and accessible in calibration schedules. Practical convenience for workshop and laboratory use Weighing only about 0.02 kg, this case is easy to position within instrument cabinets or field kits, contributing to an efficient workflow and reduced setup time during routine checks. The design supports neat stacking and space-saving storage while maintaining quick visual identification of the contained nominal value. The result is a tangible gain in operational efficiency: less time spent preparing weights, and more consistent results from measurement chains that depend on protected reference masses. Contact Metav Werkzeuge in Emmerich for product availability and tailored guidance on the KERN 317-040-400 plastic case; our specialists can advise on storage solutions and place orders directly via info@metav-werkzeuge.com or +49 2822 7131930 Technical data Article number: 317-040-400 SKU: 317-040-400 GTIN: 4045761081345 Manufacturer: KERN Country of origin: DE Facts Weight of case: 0.02 kg Nominal weight compatibility: 10 g Tariff number: 84239090 Special features Material: Plastic Suitable for: single weights (button/compact) Compatible classes: E1, E2 FAQ Is the case suitable for 10 g calibration weights? Yes. The KERN plastic case 317-040-400 is specified for single weights with a nominal value of 10 g and provides tailored recesses for safe storage. Can this case be used for both E1 and E2 class weights? Yes. The design is compatible with weights used in class E1 and E2, supporting high-precision applications that require careful handling. What is the weight of the empty case? The empty case weighs approximately 0.02 kg, making it easy to handle and convenient for transport between laboratory and workshop. Does the case protect against contamination and mechanical damage? The compact, button-style recesses and rigid plastic body reduce direct contact and abrasion, helping to preserve the condition and measurement reliability of calibration weights. KERN — Germany; contact details not provided.

Protect valuable calibration weights with a padded wooden case that keeps a 20 g single weight secure and ready for use; compatibility with KERN weight series and a compact, lightweight design support efficient workshop routines. Order the case directly via Metav Werkzeuge or consult our specialists for tailored advice. KERN Wooden case for single weights 20 g (317-050-100) The wooden case for single weights offers secure, padded storage for 20 g calibration weights, suited to metrology, workshops and verification tasks. Padded wooden case for single weights Fits 20 g nominal weights, classes E1–F1 Compatible with KERN 307, 316, 317, 326, 327, 329 Secure storage that protects calibration accuracy The padded wooden case is designed to protect a single 20 g calibration weight from knocks, dust and moisture during storage and transport. By isolating the mass from external influences, the case helps to maintain the weight’s calibration integrity and reduces the risk of surface damage that can affect measurement traceability. For environments where repeated handling occurs, this protection translates into fewer recalibrations and uninterrupted measuring workflows. Efficient handling and straightforward organisation A compact, purpose-made storage solution simplifies daily routines in the workshop and laboratory. The interior padding holds the weight firmly in place, making placement and removal quick and reliable. Compatibility with several KERN single-weight series ensures consistent organisation across existing sets, reducing time spent searching for the right item. The lightweight construction supports easy transfer between benches or to mobile test locations without adding unnecessary bulk. Engineered for metrology requirements and easy identification Compatible with nominal 20 g weights in classes E1–F1, the case meets common metrology requirements for high-precision reference masses and is suitable for button/compact weight formats. The wooden exterior offers a stable, thermally neutral shell while the padded interior cushions against vibrations. Clear labelling with the SKU supports traceability and inventory control, aiding quality assurance processes and log keeping. For secure, standards-conscious storage of precision weights, contact Metav Werkzeuge in Emmerich at info@metav-werkzeuge.com or call +49 2822 7131930 to request the KERN wooden case 317-050-100 and expert procurement advice Technical data SKU: 317-050-100 GTIN: 4045761003613 Manufacturer: KERN Material: Wood Weight: 0.13 kg Facts Nominal value: 20 g Classes: E1–F1 Origin: DE HS code: 84239090 Special features Padded interior For single weights (button/compact) Compatible with KERN 307, 316, 317, 326, 327, 329 FAQ What weight does this case accommodate? The wooden case is designed for a single nominal 20 g calibration weight, suitable for button/compact formats. Which accuracy classes are supported? This storage solution supports weights of classes E1–F1, making it suitable for fine metrology and verification tasks. Is the case compatible with other KERN products? Yes, the case is compatible with KERN single weights including models 307, 316, 317, 326, 327 and 329. Does the case protect against environmental influences? The padded interior and wooden exterior provide protection from shocks, dust and minor moisture exposure, helping to preserve calibration. Can the case be used for transport between sites? The compact, lightweight design supports safe short-distance transport of a single reference weight while maintaining its protective cushion. KERN — Germany — Manufacturer contact not provided

Take advantage of a compact storage solution that combines robust plastic construction, protection for single 20 g calibration weights and a lightweight design for easy handling. The result is organised, traceable storage for E2-class single weights that supports efficient calibration workflows; order the case directly via Metav Werkzeuge or ask our consultants for tailored advice. KERN 317-050-400 Plastic Weight Case — secure storage for 20 g single weights, class E2 A compact Plastic Weight Case by KERN designed for secure storage and protection of individual 20 g calibration weights intended for class E2 applications Plastic case for single 20 g weights Compatible with E2 accuracy class Lightweight, impact-resistant design Protected and orderly storage to streamline calibration routines The case offers secure containment for individual calibration weights, reducing handling errors and protecting sensitive masses during storage and transport. With a compact footprint and impact-resistant plastic body, the storage solution prevents scratches and contamination that could affect measurement results. This contributes directly to more reliable mass checks and faster set-up in quality control processes, supporting consistent calibration routines in production and workshop environments. Designed for compatibility with precision weights and simple handling Manufactured to accommodate 20 g button/compact weights and matched to class E2, the case ensures that each mass remains identifiable and accessible. The internal layout maintains the order of individual weights, simplifying inventory checks and traceability. The lightweight construction also reduces transport effort between storage and balance, enabling technicians to focus on measurement tasks rather than logistical handling. Durable materials and straightforward workshop integration Made from robust plastic, the case balances durability with a low overall weight of 0.02 kg, making it easy to carry and store without compromising protection. Its plain, functional design fits naturally into calibration rigs and benches, while compatibility with common single-weight formats keeps it versatile across different metrology setups. Fewer damaged weights and clearer organisation lead to lower rework and improved uptime for inspection tasks. Contact Metav Werkzeuge in Emmerich for tailored advice on the KERN 317-050-400 plastic weight case — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data SKU: 317-050-400 Manufacturer: KERN GTIN: 4045761081352 Facts For weight: 20 g Accuracy class: E2 Weight: 0.02 kg Commodity code: 84239090 eClass: 21100103 Special features Material: plastic For single weights (button/compact) Origin: DE Storage solution for individual calibration weights FAQ Which weights fit this case? The plastic weight case is designed for individual 20 g single weights in the button/compact form factor and is suitable for organised storage of these items. Is the case suitable for class E2 calibration weights? Yes; the KERN 317-050-400 plastic case is specified for storage of E2-class single weights and supports proper handling to maintain their calibration condition. What is the weight and material of the case? The storage case is made from plastic and has an approximate weight of 0.02 kg, offering a lightweight yet protective solution for everyday workshop use. Who manufactures the product and what is the SKU? The case is manufactured by KERN and sold under SKU 317-050-400 (GTIN 4045761081352). Metav Werkzeuge, Emmerich am Rhein, Germany · info@metav-werkzeuge.com · +49 2822 7131930 · WhatsApp +49 170 2837271

Take advantage of a padded wooden case that protects 50 g single calibration weights of classes E1–F1 and keeps them organised for transport and storage; order the case directly via Metav Werkzeuge or consult our specialists for further technical details. KERN 317-060-100 wooden case for single calibration weights — padded, for 50 g (E1–F1) KERN 317-060-100 wooden case for single calibration weights, supplying secure storage and transport for 50 g weights in knob/compact form across accuracy classes E1 to F1. Padded interior for secure storage Fits 50 g single calibration weights Suitable for classes E1–F1 Solid wooden construction, compact design Protection that preserves measurement integrity The padded interior and tailored compartments reduce movement and mechanical stress during handling, helping to maintain the weight geometry that is critical for reproducible measurements. By limiting shocks and abrasion, the wooden case supports long-term stability of calibration masses and thus contributes to consistent results in calibration routines. The robust timber shell combines form and function for reliable everyday use in laboratories and workshop environments. Designed for traceable calibration sets and compatibility This case is designed specifically for 50 g single calibration weights in knob/compact form and is compatible with common KERN single-weight models. The configuration accommodates accuracy classes E1–F1, making the case suitable for high-precision reference masses as well as routine verification sets. Clear compartmenting aids organisation and traceability during storage, ensuring that reference weights remain identifiable and ready for use in controlled measurement procedures. Practicality and quality for daily workshop use Weighing only a small fraction of the contents and offering a compact footprint, the wooden case combines durability with portability for transport between workbenches or sites. The padded lining minimises micro‑abrasion and the natural rigidity of wood provides structural protection against pressure and knocks. This practical storage solution supports efficient workflows by keeping calibration weights accessible, protected and ready for verification tasks without unnecessary handling. For organised calibration routines and secure transport, contact Metav Werkzeuge in Emmerich for further information or technical advice at info@metav-werkzeuge.com or by phone on +49 2822 7131930; WhatsApp enquiries welcome at +49 170 2837271 Technical data Article number: 317-060-100 Manufacturer: KERN SKU: 317-060-100 GTIN: 4045761003637 Country of origin: DE Core data Weight (kg): 0.12 Intended weight: 50 g Accuracy classes: E1–F1 Tariff code: 84239090 Materials & features Material: Wood Padded interior Fits single weights KERN 307, 316, 317, 326, 327, 329 For knob/compact form FAQ What size and weight class does the case accept? The wooden case accepts single calibration weights of 50 g in accuracy classes E1–F1, designed for knob/compact mass forms. Is the interior protected against impacts? Yes, the case features a padded interior that cushions the masses and reduces mechanical stress during transport and storage. Which KERN weight models fit into the compartments? Compartments are compatible with KERN single weights including models 307, 316, 317, 326, 327 and 329. Can the case be used for field transport between sites? The compact wooden construction with padding provides adequate protection for transport between workshops and measurement stations. Does the case include locking or sealing features? The product is specified as a protective wooden case with padded interior; further locking or sealing options are not listed for this item. KERN — DE

Compact, lightweight storage for single calibration weights that protects accuracy and simplifies handling; ideal for workshops and calibration labs. Benefit from secure organisation, easy identification of 50 g E2 button weights and robust plastic construction. Order directly via Metav Werkzeuge or consult our specialists for further technical details. KERN 317-060-400 Plastic weight case — for single 50 g E2 button/compact weights A KERN 317-060-400 plastic case designed to store and protect a single 50 g calibration weight of class E2 in button or compact form Plastic case for single weight protection Fits 50 g E2 button/compact weight Lightweight: approx. 0.02 kg Protects calibration integrity during storage and transport The case offers secure storage for precision weights, reducing the risk of nicks, contamination and handling marks that would impair measurement certainty. Constructed from durable plastic, the unit provides a protective barrier against dust and minor impact, helping to preserve the original calibration state of a 50 g nominal weight. For laboratories and service workshops that prioritise measurement reliability, this compact solution supports consistent weighing results by maintaining the physical condition of the weight and therefore its metrological performance. Compact design that speeds up workshop workflows A small footprint and simple closure mechanism enable efficient, space-saving storage and rapid handling of individual weights. The compact format reduces search time in busy calibration benches or tool cabinets and allows clear labelling and shelf arrangement for traceable organisation. By streamlining storage, technicians benefit from faster cycle times when selecting or returning a button weight, helping to increase throughput without compromising instrument accuracy. Supports traceability and inventory control The case facilitates clear identification and traceability when linked to inventory systems. With a dedicated SKU and GTIN, each unit can be catalogued for audit trails and stock management. Storing weights in dedicated protective cases simplifies documentation during calibration cycles and shipment, which is advantageous for quality systems that require demonstrable handling practices and maintenance of calibration artefacts. Lightweight, resilient and ready for everyday use Weighing approximately 0.02 kg, the case adds minimal transport mass while offering robust protection for a sensitive measurement component. The resilient plastic construction is easy to clean and resistant to common workshop contaminants, ensuring a low-maintenance storage option. Its suitability for the button/compact format makes it a practical accessory for service engineers, calibration technicians and specialist retailers who need a reliable, low-bulk packing solution. For secure storage of class E2 calibration weights and expert advice, contact Metav Werkzeuge in Emmerich — info@metav-werkzeuge.com — for direct supply and technical guidance. Technical data Article number: 317 SKU: 317-060-400 GTIN: 4045761081369 Manufacturer: KERN Country of origin: Germany Tariff (HS) code: 84239090 Facts Nominal value: 50 g Accuracy class: E2 Weight of case: 0.02 kg Special features Case for single weights (button/compact) Material: plastic Suitable for calibration weight storage FAQ What weight type is this case designed for? The case is designed for single 50 g calibration weights in the button/compact format and matches the handling needs of class E2 instruments. Can this case be used for other weight classes? The design fits the compact/button form; classification is optimised for E2 weights, as specified for the KERN 317-060-400. Is the material suitable for regular workshop use? Yes, the plastic construction is resilient to everyday workshop conditions and easy to clean, offering practical protection for precision weights. Metav Werkzeuge · Emmerich am Rhein · info@metav-werkzeuge.com · +49 2822 7131930

Take advantage of a combination of secure storage, precise compatibility and a durable wooden design to protect single calibration weights and maintain measurement reliability. Order directly via Metav Werkzeuge or request advice from our consultants for tailored handling and storage solutions. KERN Wooden case 317-070-100 – Padded wooden case for single 100 g calibration weights The Wooden case 317-070-100 is a padded wooden storage solution designed to house single calibration weights of the button/compact form for use in laboratories and workshops. Padded wooden case for single 100 g weights Fits KERN models 307, 316, 317, 326, 327, 329 Suitable for weight classes E1 to F1 Protects button and compact weight forms Protects high-precision weights during storage and transport The padded interior of this wooden case provides reliable protection for 100 g single weights, reducing the risk of nicks, scratches and contamination that can affect measurement accuracy. A stable wooden outer shell combines with the cushioned lining to absorb shocks encountered during routine handling, preserving the calibration state of the contained mass standards. Maintaining the physical integrity of weights reduces the need for frequent recalibration and supports consistent measurement results across production and quality checks. Clear compatibility for streamlined equipment management Designed specifically for single weights in button and compact formats, the case offers direct compatibility with KERN models 307, 316, 317, 326, 327 and 329 and supports weight classes E1 to F1. These classes denote high-precision calibration standards commonly required in calibration laboratories and industrial metrology. By matching the storage to certified weight classes, the case helps to simplify inventory organisation and ensures that each weight is stored in a manner consistent with its required handling and traceability. Durable materials and compact design for everyday workshop use Constructed from wood with a robust finish, the case provides a long service life while offering a tactile, professional appearance suitable for inspection areas and bench storage. Its compact dimensions and lightweight construction (approx. 0.16 kg) make it easy to handle without adding unnecessary bulk to toolkits or transport boxes. The combination of durable housing and internal padding supports routine use in workshops and laboratories, offering confidence that precision measurement tools remain protected and ready for use. Contact Metav Werkzeuge today for specialist advice on storage and handling of precision weights and to arrange supply directly from our Emmerich facility Technical data Article number: 317-070-100 SKU: 317-070-100 GTIN: 4045761003651 Manufacturer: KERN Material: Wood Net weight: 0.16 kg Facts For weights: 100 g Weight classes: E1–F1 Country of origin: DE Tariff number: 84239090 Special features Padded interior For single weights (button/compact) Compatible with KERN 307, 316, 317, 326, 327, 329 FAQ Which weights fit this case? The wooden case 317-070-100 is sized for a single 100 g calibration weight in button or compact form and is compatible with the KERN models listed in the product details. Can it be used for E1 and F1 class weights? Yes, the case is suitable for storage of weights in classes E1 and F1, offering protection aligned with the handling requirements of these precision categories. Is the interior cushioned or rigid? The design of the Wooden case 317-070-100 features a padded interior to protect the mass standard from shocks and surface damage during storage and transport. Will the case protect weights during short transports? The combination of a sturdy wooden exterior and a cushioned interior helps to protect weights during routine short-distance transport between workshop and lab environments. Which KERN models are explicitly supported? Compatibility is specified for KERN models 307, 316, 317, 326, 327 and 329, making the case suitable for a range of single-weight products from the same manufacturer. Manufacturer: KERN – Address: Germany – Contact: n/a

Take advantage of secure, organised storage and clear calibration classification for a smoother weighing workflow; the plastic case protects single 100 g weights and supports class E2 compliance. Order the KERN case directly via Metav Werkzeuge or consult our specialists for application advice. KERN 317-070-400 Plastic case for 100 g single weights (E2) The KERN 317-070-400 is a compact plastic case designed to store and protect single calibration weights of the compact/button type, ideal for laboratories and workshop test benches. Compact plastic case for single weights Designed for 100 g button/compact weights Suitable for calibration weights class E2 Lightweight storage solution, approx. 0.02 kg Protecting measurement accuracy with organised storage A robust plastic case reduces handling damage and contamination risks, helping to preserve the nominal mass of calibration items. The design secures single weights in individual seats so movement is prevented during transport or storage, which contributes to consistent calibration results. For calibration routines and routine checks, organised storage minimises time spent sorting weights and lowers the chance of using incorrect nominal values. Clear classification for traceable calibration workflows The case is specified for 100 g nominal weights and for class E2, which makes it suitable for high-precision verification and comparison tasks where tighter tolerances are required. Class E2 indicates defined maximum permissible errors in accordance with recognised standards, supporting reliable weighing procedures. Marking and an orderly layout ease inventory control and support traceability in quality management systems common in metrology and laboratory settings. Lightweight design for efficient handling and transport Constructed from durable plastic, the case combines protection with minimal bulk — listed mass approximately 0.02 kg — simplifying handling during frequent checks or when preparing calibration sets. The compact footprint saves bench and storage space, while the tailored cavities for compact/button weights reduce the risk of abrasion. For service providers and workshops, the case streamlines daily workflows and protects investment in precision weights. Choose the KERN 317-070-400 plastic case for reliable storage of 100 g calibration weights — contact Metav Werkzeuge in Emmerich for expert advice or to arrange supply via info@metav-werkzeuge.com or call +49 2822 7131930 Technical data SKU: 317-070-400 GTIN: 4045761081376 Manufacturer: KERN Country of origin: DE Tariff number: 84239090 Measurements & mass Intended nominal value: 100 g Accuracy class: E2 Weight: 0.02 kg Features & materials Material: Plastic For single weights (button/compact) Product group: Plastic case Product category: Calibration weight cases FAQ Is this case suitable for 100 g calibration weights? The case is specified for 100 g nominal single weights and supports handling and storage requirements for that nominal value. Can compact or button-style weights be stored in this case? Yes — the interior is designed for compact/button single weights, keeping each weight secured and separated. Does the case meet any calibration class requirements? The enclosure is intended for weights of class E2, assisting in workflows where the E2 tolerance class is required. What material is the case made from and how heavy is it? This protective storage is manufactured from plastic and has an approximate mass of 0.02 kg. KERN — Germany — GTIN: 4045761081376

Take advantage of the combination of secure, padded storage and precise fit for single calibration weights to protect measurement assets and streamline handling. Order the wooden case directly via Metav Werkzeuge or ask our consultants if additional technical information is required. KERN 317-080-100 Wooden case for single weights — padded, for 200 g (E1–F1) The Wooden case provides a compact, padded storage solution for single calibration weights, designed specifically for button/compact 200 g weights in accuracy classes E1–F1 Padded interior for gentle weight protection Fits single 200 g button/compact weights Suitable for accuracy classes E1–F1 Compatible with common KERN single-weight models Protect valuable calibration masses with secure, cushioned storage A dedicated wooden case offers practical protection for calibration weights, reducing the risk of nicks and contamination that can affect measurement accuracy. The padded interior cushions each mass, preventing movement during transport and storage, which helps maintain the certified condition of weights in the 200 g range. Compatible KERN models are accommodated by precision-cut compartments, ensuring a snug fit for button/compact forms and avoiding the need for improvised packaging that can accelerate wear. Reduce handling time and simplify workshop workflow Organising single weights in a purpose-built case speeds up routine procedures in the metrology lab or workshop. The compact format groups the required mass within easy reach, shortening preparation time for calibrations and checks. Because the box is designed for weights in classes E1–F1, technicians gain reliable repeatability for high-precision tasks; the arrangement supports efficient inventory control and rapid identification during audits or testing sequences. Durable materials, precise fit and consistent quality assurance The wooden construction combines a traditional material with functional design: hard-wearing exterior, inner padding and tailored recesses protect both the surface and geometry of each mass. Originating from Germany, this storage solution complements established calibration equipment and preserves traceability by keeping weights in a single, dedicated container. The compact form factor and light own weight make it straightforward to store on calibration trolleys or in secure cabinets without adding bulk. Secure the KERN wooden case for single weights through Metav Werkzeuge — for product details or technical clarification contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 317-080-100 SKU: 317-080-100 GTIN: 4045761003675 Manufacturer: KERN Origin: DE Facts Weight: 0.21 kg Compatible nominal weight: 200 g Customs tariff number: 84239090 Accuracy classes: E1–F1 Special features Material: wood Padded interior For single weights (button/compact) Compatible with KERN 307, 316, 317, 326, 327, 329 FAQ Which nominal weights fit this case? The wooden case is designed for single 200 g masses in button/compact form and accommodates weights certified in accuracy classes E1–F1. Is the interior suitable for transport? Yes, the padded interior protects weights from shocks and movement, making the case suitable for routine transport within workshops and between calibration stations. Which manufacturers or models are compatible? The case fits a range of KERN single-weight models including 307, 316, 317, 326, 327 and 329, with compartments tailored for button/compact designs. What material and origin does the case have? The case is made from wood with a padded lining and originates from Germany. KERN — Germany; Distributor contact: Metav Werkzeuge — info@metav-werkzeuge.com / +49 2822 7131930

Take advantage of secure, compact storage and simple handling for a smooth calibration routine: the case protects single weights of 200 g in class E2, is made from robust plastic, and keeps handling efficient and safe — order via Metav Werkzeuge or consult our specialists for compatibility and stock. 317-080-400 Plastic weight case (200 g, Class E2) by KERN A Plastic weight case 317-080-400 designed to protect and transport single calibration weights of 200 g in class E2, suitable for compact/button form and workshop storage *Protective plastic case for single 200 g weights *Compatible with compact/button weight designs *Suitable for calibration class E2 *Lightweight: 0.02 kg Secure storage that preserves calibration integrity The compact design provides targeted protection for a single calibration weight of 200 g, reducing the risk of handling damage and preserving the mass surface from incidental knocks. By keeping the instrument separately stored in a purpose-made container, the traceability and condition required for routine checks are supported. The tailored fit for compact or button-style weights ensures minimal movement inside the case, which helps to maintain the calibration tolerance associated with class E2 items and reduces the need for premature recalibration. Low mass and robust material for everyday workshop use Constructed from plastic, the case combines a low own weight of 0.02 kg with practical resilience for regular transport between workstations or into field environments. The lightweight nature cuts down bulk when multiple items are carried, while the durable shell absorbs routine mechanical stresses during handling. For workshops looking to simplify logistics, the case offers a convenient single-weight solution that integrates into a calibration kit without adding significant load. Practical compatibility and brand reliability for metrology tasks The accessory is specified for use with single weights in compact/button form and is intended for weights conforming to class E2 metrological requirements. As a KERN-manufactured accessory, the case aligns with established calibration workflows and complements recognised measuring equipment, supporting efficient inventory management and reliable protection. For calibration technicians and quality managers, the practical benefit is a straightforward storage solution that supports consistent measurement practices and reduces accidental damage to critical mass standards. Contact Metav Werkzeuge in Emmerich for availability, technical advice and delivery details on KERN calibration accessories Technical data Article number: 317 SKU: 317-080-400 Manufacturer: KERN GTIN: 4045761081383 Facts Nominal weight: 200 g Calibration class: E2 Own weight: 0.02 kg Origin: Germany Tariff code: 84239090 Product category: Calibration weights Special features Plastic case for single weights (compact/button) Suitable for 200 g weights Compatible with class E2 weights FAQ What is this case intended for? This case is intended for the safe storage and transport of a single 200 g calibration weight; the KERN plastic weight case 317-080-400 is designed for compact/button-style weights and conforms to class E2 usage. Can the case be used for other weight classes? The 317-080-400 is specified for class E2 200 g single weights; use with weights of different nominal value or class is not recommended without checking fit and protection suitability. What material is the case made from, and how heavy is it? The case is made from plastic and has an own weight of 0.02 kg, offering a lightweight option for routine handling and transport. Is the case suitable for workshop transport and storage? Yes; the plastic construction and compact format of the KERN 317-080-400 case make it suitable for regular workshop transport and secure bench storage. Metav Werkzeuge, Emmerich am Rhein, Germany • eMail: info@metav-werkzeuge.com • Tel: +49 2822 7131930 • WhatsApp: +49 170 2837271

Take advantage of a padded wooden case that combines secure storage, compatibility with 500 g single calibration weights and suitability for E1–F1 classes — ideal for organised metrology workflows and safe transport. Order the KERN 317-090-100 wooden case directly via Metav Werkzeuge or ask our consultants if needed. KERN 317-090-100 Wooden Case for Single Weights — padded, for 500 g, E1–F1 The KERN 317-090-100 is a padded wooden case designed to protect single calibration weights in laboratory and workshop metrology, offering compact, form-fitting storage for button and compact weight designs. Padded interior for secure storage Fits single 500 g weights (button/compact) Solid wooden construction for durability Protects calibration weights during storage and transport The case provides a padded interior that cushions delicate mass standards, reducing the risk of nicks or surface contamination that can affect calibration accuracy. Constructed from wood, the enclosure balances lightweight handling with a stable shell that shields the contents from shocks and everyday wear. For laboratories and calibration shops that handle single nominal weights, this accessory keeps weights organised and accessible while maintaining the conditions required for repeatable results. The compact layout suits bench storage and transit between test stations without compromising the integrity of each weight. Designed for metrology workflows and traceability Compatibility with 500 g nominal weights and acceptance for E1–F1 classes ensures the case supports industry-standard mass artefacts used in verification and routine checks. The internal layout accommodates button and compact forms commonly found in calibration sets, enabling technicians to store items in a manner that preserves their reference surfaces. By keeping standards in a dedicated, padded container, the risk of handling-induced deviation is reduced, which contributes to consistent measurement traceability and efficient workflow management in quality-controlled environments. Practical choice for workshops and calibration service providers Beyond protection, the wooden case simplifies inventory management and presentation of individual weights during audits or customer demonstrations. Its measured footprint and light overall mass make it simple to handle while the padded inserts prevent contact between pieces. The product supports prudent workshop practice by offering a reliable, purpose-built storage option compatible with KERN single-weight ranges and similar mass standards. Where robust, no-frills protection is required, this case offers a straightforward solution that integrates with existing calibration processes. For personalised purchasing advice and to arrange supply from our Emmerich warehouse, contact Metav Werkzeuge — trusted precision partners for workshop and industrial metrology. Technical Data Article number: 317-090-100 SKU: 317-090-100 GTIN: 4045761003699 Manufacturer: KERN Facts Weight: 0.34 kg Nominal value suitability: 500 g Accuracy class suitability: E1–F1 Tariff number: 84239090 Country of origin: DE Special features Material: Wood Padded interior Fits single weights (button/compact) Compatible with KERN 307, 316, 317, 326, 327, 329 variants FAQ What size and weight class does this case accommodate? The KERN 317-090-100 wooden case is designed for single weights with a nominal value of 500 g and is suitable for accuracy classes E1–F1. Can compact and button-style weights be stored together? Yes, the padded inserts in the wooden case accept both button and compact forms, allowing mixed storage of compatible single weights. Is the case suitable for transport between sites? The solid wooden shell and internal padding provide protection for handling and short transports; the KERN case is intended for safe movement within workshops and between nearby facilities. Does the case affect weight calibration or traceability? The case itself does not impact calibration values; by preventing surface damage and contamination, the KERN 317-090-100 supports the preservation of traceability for stored mass standards. Which KERN weight ranges are compatible with this case? The case is compatible with single weights from the KERN series including 307, 316, 317, 326, 327 and 329 family designs. Manufacturer: KERN — Address: not provided — Contact: not provided

Take advantage of a compact, durable plastic case that organises and protects single calibration weights while keeping storage simple and repeatable; the robust design supports precise handling of 500 g button/compact weights and integrates with class E2 calibration workflows. Order the case directly via Metav Werkzeuge or request advice from our consultants for specification matching and stock planning. KERN 317-090-400 Plastic Case for 500 g Single Weights — Compact, Protective Design A KERN 317-090-400 plastic case designed to store and protect single 500 g calibration weights, suitable for compact/button weight shapes and calibration class E2 applications Compact case for single 500 g weights Fits button / compact weight shape Durable plastic construction Designed for calibration class E2 Protects calibrated weights and preserves accuracy during storage The plastic case provides reliable protection for individual calibration weights, reducing the risk of surface damage and contamination that can affect mass accuracy. With a form tailored to 500 g button-style weights, the storage shell minimises movement and impact during handling or transport, which helps maintain calibration status and extends service intervals. The compact design supports organised storage on workbenches or in instrument cabinets while ensuring traceability for routine checks. Organised handling that speeds up calibration workflows By keeping each weight secure in a dedicated compartment, the case simplifies selection and return procedures during weighing and calibration tasks. This design lowers handling time for technicians and reduces the chance of mix-ups between different nominal masses, supporting faster throughput in quality control and workshop environments. The logistical benefit is tangible: quicker access and systematic storage translate into measurable time savings across repeated measurement routines. Robust construction for everyday workshop conditions Manufactured from durable plastic, the case resists typical workshop stresses such as knocks and light contamination, offering a cost-effective protective solution without compromising usability. The material choice balances durability with low weight, allowing units to be stacked or transported without adding significant load. The result is a practical accessory that preserves the condition of precision masses while remaining easy to integrate into existing test benches and calibration sets. Choose Metav Werkzeuge as the procurement partner for the KERN 317-090-400 case — contact Metav Werkzeuge in Emmerich for tailored supply options, availability checks and advice on integrating the case with existing calibration equipment (info@metav-werkzeuge.com • +49 2822 7131930 • WhatsApp +49 170 2837271) Technical data Article number: 317-090-400 SKU: 317-090-400 GTIN: 4045761081390 Manufacturer: KERN Facts Nominal value suitability: 500 g Calibration class: E2 Weight: 0.02 kg Tariff number: 84239090 Country of origin: DE Special features Material: Plastic Suitable for single weights (button / compact) Designed for calibration storage and protection Product group: Plastic cases for calibration weights FAQ What nominal weight is this case designed for? The case is designed for 500 g single weights and secures button/compact mass shapes to reduce movement during storage. Is the case suitable for standard calibration classes? Yes, the storage solution is designed for weights used in calibration class E2, providing appropriate protection for that accuracy level. Which manufacturer produced this case and what is the SKU? This item is from KERN, listed as SKU 317-090-400, and intended for organised storage of individual calibration masses. Can the case be stacked or transported without affecting the weights? The durable plastic construction permits stacking and light transport while protecting weights from scratches and contamination, preserving measurement reliability. Metav Werkzeuge, Emmerich am Rhein, Germany • info@metav-werkzeuge.com • +49 2822 7131930

Take advantage of a robust, natural-wood storage solution that combines compact protection with clear organisation for small laboratory masses; order the wooden case directly via Metav Werkzeuge or consult our specialists for matching storage options. KERN Wooden Case 338-090-200 — for individual precision weights, unpadded A sturdy KERN wooden case designed to store individual precision weights for calibration, inspection and controlled transport in laboratories and workshops Natural wood construction, durable finish Designed for single weights, button/compact form Fits nominal values from 1 mg to 500 mg Lightweight transport case, compact footprint Secure storage that preserves measurement integrity The wooden case provides a reliable housing for precision weights, keeping each piece separated and accessible. Its unpadded layout reduces the risk of contamination that can occur when fibres from linings migrate onto mass standards; at the same time the snug compartments prevent lateral movement, lowering abrasion and measurement drift during handling. The natural-wood shell offers dimensional stability and a tactile, professional finish that supports repeatable calibration procedures. Practical compatibility for calibration and quality control Designed for single, button-style or compact weights, the case accommodates nominal values between 1 mg and 500 mg, making it suitable for small-mass work in calibration labs and quality assurance. Clear organisation of individual slots accelerates inventory checks and instrument set-up, reducing downtime during verification tasks. The simple internal layout also facilitates routine cleanliness checks and makes it straightforward to pair weights with calibration reports or tare lists. Durable materials and straightforward handling Constructed from responsibly sourced natural wood, the case balances low weight with robust protection for small masses. The unpadded interior is intentionally chosen for applications where lint-free storage is preferred; this supports traceable mass handling and reduces the need for frequent re-cleaning of weights. The compact footprint and light overall weight simplify storage on workshop trolleys or inside cabinet drawers while maintaining immediate access to critical measurement standards. For secure storage and fast supply from Emmerich, contact Metav Werkzeuge to request the KERN wooden case 338-090-200 or ask for advice at info@metav-werkzeuge.com or by phone on +49 2822 7131930 Technical data Article number: 338 SKU: 338-090-200 Manufacturer: KERN Material: Wood Unpadded interior Fits nominal values 1 mg – 500 mg (single) GTIN: 4045761007291 Facts Net weight: 0.13 kg Customs tariff (CN): 84239090 eCl@ss: 21100103 Origin: DE Special features For individual weights (button / compact) Product category: Test weights / Cases Category path: Scales › Test weights Unpadded design for lint-free storage Lightweight, compact footprint for easy storage FAQ Is this case suitable for button or compact weights? Yes. The KERN wooden case 338-090-200 is designed specifically for single button/compact weights and organises them for quick access during calibration. Can the case accommodate weights down to 1 mg? The case fits nominal values from 1 mg up to 500 mg, making it suitable for small-mass sets used in fine measurement tasks. Does the interior include cushioning to protect delicate masses? The interior is unpadded by design; this supports lint-free storage and simplifies cleanliness control for precision masses. Who supplies this case and where is it shipped from? Metav Werkzeuge supplies the KERN wooden case 338-090-200 and ships from Emmerich am Rhein with transparent order processing for workshop and industry clients. Metav Werkzeuge, Emmerich am Rhein, Germany — info@metav-werkzeuge.com — +49 2822 7131930

Benefit from robust plastic construction, compatibility with single nominal values 1 mg–500 mg and secure organisation for calibration weights of classes E1–M2, ensuring reliable storage and easy handling. Order the case directly via Metav Werkzeuge or ask our consultants if needed. KERN 347-009-400 Plastic Case for Single Calibration Weights – for 1 mg–500 mg, E1–M2 The KERN 347-009-400 is a compact plastic case designed to protect and organise single calibration weights for laboratories, service engineers and workshop calibration tasks. Compact plastic case for calibration weights Fits single weights from 1 mg to 500 mg Compatible with classes E1 to M2 Lightweight at approx. 0.02 kg Protects precision weights during storage and transport The case provides secure storage for individual calibration weights, reducing the risk of contamination and handling damage that can alter mass values. The internal layout is adapted for button/compact designs commonly used in calibration sets; this keeps each weight separated and stable during transport. By using a dedicated enclosure made from durable plastic, routine handling becomes more predictable and safer for sensitive measurement artefacts. Ensures compatibility with recognised accuracy classes Designed for nominal values from 1 mg–500 mg, the enclosure supports weights used across common accuracy classes E1–M2, which makes it suitable for laboratory checks and field calibration. For readers less familiar with classes: E1 and M2 denote standardised tolerance ranges used in legal and laboratory metrology; storing weights in the correct case helps maintain traceability and reduces the chance of cross-contamination that could compromise conformity checks. Lightweight, compact design for efficient workflow At roughly 0.02 kg, the case contributes negligible additional mass while offering a compact footprint for bench or toolbox storage. The plastic construction balances low weight with sufficient rigidity to protect contents, enabling technicians to carry sets between site visits without bulky packaging. The space-saving profile also assists in organised inventory management, simplifying quick selection and return of individual weights during calibration routines. Practical benefits for workshops and calibration services For calibration laboratories, service teams and quality departments, a purpose-built case streamlines handling and reduces downtime caused by misplaced or contaminated weights. The product supports better operational consistency by keeping single calibration weights in order and immediately accessible, which translates into fewer interruptions during measurement tasks and a smoother calibration workflow. Contact Metav Werkzeuge for delivery from Emmerich, tailored advice or technical clarification via info@metav-werkzeuge.com or call +49 2822 7131930 Technical Data Article number: 347 SKU: 347-009-400 GTIN: 4045761008625 Manufacturer: KERN Facts Weight: 0.02 kg Nominal values: 1 mg–500 mg HS code: 84239090 Special features Material: Plastic For: single calibration weights (button/compact) Class compatibility: E1–M2 Country of origin: DE FAQ Which nominal values fit in this case? The KERN 347-009-400 accommodates single weights with nominal values from 1 mg to 500 mg. Is the case suitable for weights with button or compact form? Yes, the enclosure is intended for button/compact designs and keeps each single weight separated for safe storage. Which accuracy classes are compatible with the case? The case is compatible with weights in accuracy classes E1 to M2 and is suitable for laboratory and workshop use. What material is the case made from and how heavy is it? The case is constructed from plastic and weighs approximately 0.02 kg, offering a lightweight yet protective solution. Manufacturer: KERN, Address: Germany, Contact: not specified

Take advantage of precise storage, robust protection and a padded interior to keep single metrological weights safe and ready for immediate use; order the case directly via Metav Werkzeuge or ask our consultants for additional specifications Aluminium-protected case 317-009-600 — single-weights storage for 1 mg–500 mg, KERN The Aluminium-protected case is a compact, purpose-built storage solution for single metrological weights, designed for safe handling and routine use in calibration labs and workshops Aluminium-protected housing for robust transport Suitable for single weights 1 mg–500 mg Compatible with classes E1–M3 Padded interior for shock protection Built for secure, standards-compliant storage The aluminium shell provides a rigid outer barrier that protects delicate calibration weights from mechanical stress and contamination. By combining a lightweight aluminium construction with an internal padding system, the case offers mechanical protection and dimensional stability without adding unnecessary bulk. This design keeps single weights organised and protected, ensuring quick access during calibration tasks and reducing the risk of damage that can affect measurement accuracy. Ensures traceability and correct handling for metrology workflows Storage that supports metrological routines contributes directly to reliable results. The case is specified for weights in the range 1 mg–500 mg and for classes E1–M3, which makes it suitable for a wide range of laboratory and industrial calibration scenarios. Separate compartments for individual pieces and the padded interior reduce handling errors and minimise cross-contamination, helping maintain the declared tolerance and prolonging the service life of precision weights. Practical benefits that support everyday work in the workshop Lightweight and compact, the case simplifies logistics in environments where secure transport and secure storage are required. The rigid aluminium exterior resists deformation during routine movement, while the internal padding cushions delicate surfaces. This combination reduces downtime caused by damaged weights and supports efficient workflows in quality control and inspection routines, contributing to predictable throughput and fewer interruptions. Contact Metav Werkzeuge today to discuss the KERN aluminium-protected case 317-009-600 and secure a reliable storage solution for precision weights — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 317-009-600 Manufacturer: KERN SKU: 317-009-600 GTIN: 4045761223592 Facts Weight range: 1 mg–500 mg Suitable classes: E1–M3 Net weight: 0.3 kg HS code: 84239090 Origin: CN Special features Material: Aluminium Interior: padded Product group: aluminium-protected cases for single weights Product category: test weights / cases FAQ Is the case suitable for single weights from 1 mg to 500 mg? The aluminium-protected case 317-009-600 is specified for single weights in the range 1 mg–500 mg and supports organised storage for that range. Which weight classes can be stored in this case? This case is compatible with weights of classes E1–M3, making it suitable for a variety of calibration and inspection tasks requiring high accuracy. Does the interior protect against shock and abrasion? The interior of the KERN aluminium-protected case features padding that cushions weights and reduces the risk of mechanical damage and surface abrasion during transport and handling. Can the case be used for routine transport between sites? The rigid aluminium housing and padded interior of the 317-009-600 provide robust protection suitable for routine transport within laboratory and workshop environments. KERN — Origin: China; Contact: Metav Werkzeuge, Emmerich — eMail: info@metav-werkzeuge.com, Phone: +49 2822 7131930

Robust aluminium housing combined with a padded interior protects single calibration weights and helps preserve measurement accuracy during storage and transport. Benefit from secure handling, clear class compatibility (E1–M3) and compact organisation. Order the aluminium-protected case directly via Metav Werkzeuge or ask our consultants if needed. Aluminium-protected Case 317-010-600 – Case for Single Calibration Weights, 1 g (E1–M3) by KERN Aluminium-protected Case 317-010-600 for secure, padded storage and safe transport of single 1 g calibration weights in button/compact form Aluminium-protected design for single weights Padded interior for secure storage Suited for 1 g calibration weights Compatible with weight classes E1–M3 Preserve accuracy with a protective housing The aluminium-protected case offers a rigid outer shell that reduces the risk of mechanical shocks and environmental contamination, which can affect highly accurate weights. The combination of a lightweight aluminium exterior and a padded interior provides a stable micro-environment for precision weights so that mass values remain reproducible between uses. For laboratory and workshop routines where traceability matters, this protection reduces the frequency of recalibration and supports consistent measurement results. Designed for efficient handling and storage The compact layout has been specified for 1 g single weights in button/compact form and arranged to keep each weight immobilised and separated. This organisation speeds up handling during calibration sequences and keeps the set ready for use on balances or during transport between workstations. The case’s compatibility with E1–M3 classes ensures it meets the storage expectations for a range of metrology grades, enabling a straightforward integration into existing calibration workflows. Confidence from reputable manufacturing and supply chain Manufactured by KERN, the case reflects established standards in metrology accessories and is intended as a robust solution for daily workshop use. Sourcing such protective cases through a dedicated supplier reduces logistical complexity; Metav Werkzeuge’s stock and distribution from Emmerich provide a local-quality filter for the European market and a reliable supply chain for industrial customers. This combination supports long-term operational reliability and helps protect investment in high-precision measurement equipment. For tailored advice on fitting this KERN aluminium-protected case to an existing set of calibration weights, contact Metav Werkzeuge in Emmerich via info@metav-werkzeuge.com or call +49 2822 7131930 and request the SKU 317-010-600 for fast assistance Technical data Article number: 317-010-600 SKU: 317-010-600 GTIN: 4045761222625 Manufacturer: KERN ECLASS: 21100103 Facts Material: Aluminium Net weight: 0.18 kg Suitable for weights: 1 g Weight classes: E1–M3 Special features Padded interior For single weights, button/compact form Product category: Cases & Etuis for calibration weights Country of origin: CN Customs tariff number: 84239090 FAQ Is this case suitable for 1 g calibration weights? Yes. The aluminium-protected case 317-010-600 is specified for single 1 g weights in button/compact form and is arranged to secure each weight separately. Which weight classes are compatible with this case? The case accommodates weights for classes E1–M3, making it suitable for high-precision to general calibration categories within that range. Does the case protect against shocks and contamination? Yes. The rigid aluminium shell combined with a padded interior minimises mechanical impact and reduces entry of dust or particles that could affect mass values. Who manufactures this protective case and where is it supplied from? The case is manufactured by KERN and distributed via Metav Werkzeuge; the product SKU is 317-010-600 and the country of origin is CN. KERN — Country of origin: CN — No manufacturer address provided

Take advantage of robust protection, padded interior and compact organisation to keep single 2 g calibration weights ready for dependable use; order the case directly via Metav Werkzeuge or consult our specialists for specification checks and delivery from Emmerich. Aluminium-protected Case for Individual Weights 2 g (E1–M3) – KERN The Aluminium-protected Case is a compact, padded storage solution for single 2 g calibration weights, designed for secure transport and safe storage in calibration and workshop environments. Padded interior for secure transport Aluminium shell for robust protection Suitable for 2 g single weights (E1–M3) Compatible with button/compact format Robust protection extends service life and simplifies handling The aluminium shell combined with a padded interior provides mechanical protection that reduces the risk of dents or contamination during storage and transport. For metrology and calibration environments, this physical protection translates directly into longer maintenance intervals and fewer unscheduled recalibrations. The compact protective container keeps individual weights stable within the case, preventing contact wear and preserving the mass value declared for 2 g test items. This reduces downtime in production and measurement routines and supports consistent measurement results over time. Clear classification and safe storage for routine use Designed for single weights in classes E1–M3, the case organises sensitive items according to their legal-metrological classification, so the status of each weight is evident at a glance. The internal layout fits the button/compact form factor commonly used in laboratory and shop-floor calibration sets, so items remain seated and protected. By keeping calibrated masses in a purpose-built enclosure, handling is simplified during audits or transfer between weighing instruments, thereby supporting efficient workflows and traceable measurement practice. Compact logistics that support accuracy and compliance Weighing equipment and its accessories must be practical for everyday use: the slim, lightweight case (approx. 0.18 kg) is easy to store on a bench or in a transport crate without adding bulk. The robust enclosure reduces environmental exposure and limits the need for frequent re-cleaning of weights, helping to maintain compliance with calibration intervals. For organisations that manage sets of single masses, the case aids inventory control and reduces the risk of damage during movement between quality-control points. A reliable partner for precision equipment procurement Sourcing measuring accessories from an experienced supplier lowers procurement complexity. Metav Werkzeuge combines wide availability with quality filtering from Emmerich, enabling workshops and laboratories to centralise their metrology purchases and rely on consistent product standards. The combination of a durable aluminium housing and a cushioned interior makes this storage solution a practical addition to calibration kits and service carts, supporting long-term value in measurement chains. Contact Metav Werkzeuge for ordering or technical clarification on the KERN aluminium-protected case and benefit from localised, reliable supply from Emmerich Technical data Article number: 317-020-600 Manufacturer: KERN GTIN: 4045761222632 Origin: CN Facts Weight (approx.): 0.18 kg Suitable for nominal value: 2 g Weight classes: E1–M3 Tariff number: 84239090 eClass: 21100103 Special features Material: aluminium Interior: padded Designed for: single weights, button/compact form Use case: storage and transport of calibration weights FAQ What size and weight classes does the case accept? The case is sized for individual 2 g weights and is suitable for weights classified E1–M3, accommodating the common button/compact format used in calibration sets. Is the interior protected against impacts and contamination? Yes, the internal padding provides impact protection and reduces direct contact between weights, helping to limit surface contamination and preserve the declared mass values. Can the case be used for transport between sites? The aluminium shell and cushioned interior are designed for secure short- to medium-distance transport, keeping single calibration weights stable during transfer. Which manufacturer supplies this case and how is quality ensured? The product is supplied by KERN and is intended as a protective storage solution for calibration weights; Metav Werkzeuge applies quality filtering and distribution from its Emmerich hub. KERN, Origin: China, Contact: not provided

Secure storage and controlled transport for calibration weights, combining aluminium protection with a padded interior to preserve measurement integrity and handling safety. Order the Aluminium-protected Case 317-030-600 directly via Metav Werkzeuge or ask our consultants if needed. Aluminium-protected Case for single calibration weights — KERN 317-030-600, padded protection The Aluminium-protected Case is a compact storage and transport solution engineered for individual calibration weights of 5 g in accuracy classes E1–M3, suitable for button/compact designs and routine calibration workflows. Aluminium outer shell for robust protection Padded interior for safe weight positioning Designed for 5 g calibration weights E1–M3 Compatible with button/compact weight design Preserve calibration integrity with robust protection Robust mechanical protection is essential where traceability and repeatable results matter. The case’s aluminium construction provides a durable barrier against impacts and environmental wear, while the padded interior secures individual weights in their intended position, reducing the risk of nicks or contamination that can alter mass values. This combination helps to maintain calibration stability between official checks and supports reliable measurement routines in both workshops and laboratories. Organised handling that speeds up workflow A well-structured storage solution reduces handling time and the chance of error during transfer and inspection. The protective case is configured for single weights in the button/compact format, allowing clear organisation of reference masses and quick identification during equipment checks. By standardising storage and transport, the case supports efficient calibration workflows and minimises downtime associated with weight handling and verification. Compatibility with accuracy classes and routine use Designed specifically for calibration weights of 5 g in classes E1–M3, the case aligns with common laboratory and industrial accuracy requirements. The stable internal fit and durable shell contribute to consistent conditions for precision weights, aiding in traceable measurement processes and helping to reduce the frequency of corrective recalibrations caused by accidental damage or contamination. For advice on integrating KERN’s aluminium-protected case into existing calibration procedures or to place an order via Metav Werkzeuge in Emmerich, contact info@metav-werkzeuge.com or call +49 2822 7131930 — consultants are ready to assist with specifications for the 317-030-600 SKU Technical data Article number: 317-030-600 Manufacturer: KERN GTIN: 4045761222649 Origin: CN Tariff code: 84239090 Facts Nominal value: 5 g Accuracy classes: E1–M3 Net weight: 1.1 kg eCl@ss: 21100103 Special features Material: Aluminium Interior: padded Intended use: single weights, button/compact form Suitable product group: calibration weight case FAQ What weight sizes fit this case? The Aluminium-protected Case is configured for 5 g single calibration weights and secures button/compact designs as specified for the KERN 317-030-600. Is the case suitable for transport between sites? Yes; the aluminium exterior and padded interior of the KERN case protect weights during transport and handling, supporting safe transfers and reducing risk of damage. Which accuracy classes does the case support? The case is designed for weights in accuracy classes E1–M3, making it suitable for laboratory and industrial calibration sets that include 5 g reference masses. Can the case be used for other weight formats? The interior is arranged for button/compact single weights; alternative formats may not be secured in the same way without modification, so the 317-030-600 is optimised for the listed design. How does the case help with calibration workflows? By providing organised, secure storage for individual weights, the case reduces handling time and the likelihood of contamination or impact, which supports traceable and repeatable calibration procedures. KERN — Origin: China — Contact details not provided

Take advantage of the robust protection and tailored organisation that extend the service life of precision weights; the lightweight aluminium protection and padded interior reduce risk during transport and storage. Order the case directly via Metav Werkzeuge or consult our specialists for application advice. KERN 317-040-600 — Aluminium-protected case for single calibration weights (10 g, E1–M3) the aluminium-protected case provides secure, compact storage for single calibration weights in button/compact form, designed for laboratory and workshop environments where safe handling and traceability matter Aluminium-protected casing for robust storage Padded interior for secure weight protection Designed for single weights, button/compact form Suitable for calibration classes E1–M3 Durable shell for dependable protection The solid aluminium construction offers a lightweight yet rigid barrier against knocks, compression and environmental wear, which helps to preserve the accuracy of stored weights. By reducing mechanical stress during handling and transport, the casing supports longer intervals between recalibrations and lowers the risk of surface damage that can affect measurement uncertainty. The robust housing is especially valuable where frequent movement or shared storage increases the chance of accidental impact, contributing directly to operational reliability. Tailored interior for safe organisation and handling A padded interior with fitted compartments secures individual button or compact-format weights and prevents contact between items. This cushioning minimises micro-abrasion and surface wear while maintaining quick visual access and organised storage. For technicians and calibration staff, the combination of firm external protection and soft internal support reduces handling time and potential errors during weighing procedures, enabling more efficient workflows in both the workshop and the calibration laboratory. Calibration-ready storage that preserves traceability Prepared for nominal 10 g weights and compatible with calibration classes E1–M3, the case supports storage routines for a wide range of precision requirements. Class designations indicate permissible tolerances and intended use: E1 for highest-precision reference weights, down to M3 for general verification tasks. Keeping weights in a purpose-built case helps maintain declared tolerances by shielding them from contaminants and deformation, thereby protecting measurement confidence across successive uses and audits. Choose the KERN aluminium-protected case for reliable preservation of precision weights — contact Metav Werkzeuge in Emmerich for tailored advice via info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 317-040-600 GTIN: 4045761222656 Manufacturer: KERN Country of origin: CN Customs tariff number: 84239090 Core specifications Net weight: 0.18 kg Nominal weight compatibility: 10 g Calibration classes: E1–M3 Product category: Prüfgewichte (calibration weights) accessories Designs and special features Material: aluminium Interior: padded Suitable for: single weights, button/compact form Protected storage for precision calibration weights FAQ What nominal weight sizes fit this case? The case is specified for 10 g single-format weights and is designed to accommodate button/compact styles commonly used at that nominal value. Which calibration classes are compatible with the case? Storage is suitable for weights across calibration classes E1–M3, supporting both high-precision reference pieces and general verification weights. How does the aluminium casing benefit weight longevity? Aluminium offers a rigid, lightweight shell that reduces impact and compression risks; combined with the padded interior, it helps to prevent surface damage that can alter measurement accuracy. Is the interior suitable for rapid handling during calibration work? Yes; the fitted, padded compartments provide organised access and secure retention, which streamlines handling and reduces the likelihood of contact-related wear. Who manufactures this case and what is the SKU? The case is produced by KERN and sold under SKU 317-040-600, intended as a protective accessory for single calibration weights. KERN — country of origin: CN — no manufacturer contact provided

Robust aluminium protection combined with a padded interior and a compact, button-style layout ensures secure transport and storage for single calibration weights of 20 g, suitable for precision classes E1–M3. Order the (Aluminium-protected case KERN 317-050-600) directly via (Metav Werkzeuge) or ask our consultants if needed. Aluminium-protected case KERN 317-050-600 — padded housing for single calibration weights The Aluminium-protected case provides secure, compact storage for individual calibration weights in the button/compact format and is designed for professional metrology environments Aluminium-protected housing Padded interior for secure storage For 20 g single weights E1–M3 Protection that preserves measurement integrity The solid aluminium shell offers mechanical protection against knocks and abrasion, while the padded interior prevents movement and surface damage during handling and transport. For traceable calibration workflows, physical protection of weights reduces the risk of mass change due to nicks or contamination; this maintains calibration accuracy and extends service intervals. The compact footprint suits crowded calibration benches and dedicated transport boxes, supporting efficient storage without compromising accessibility. Built for calibration routines and compliance Designed specifically for single nominal values of 20 g and for precision classes E1–M3, the case supports standard conformity requirements used in laboratory and workshop calibration procedures. The internal layout accommodates the button/compact form factor used by many precision weight manufacturers, ensuring a snug fit that minimises handling time and error potential. The result is a reliable aid to routine calibrations, helping to keep measurement chains stable and reducing downtime associated with damaged weights. Practical handling for workshops and laboratories Lightweight at about 0.18 kg, the case remains easy to carry while providing solid protection, making it suitable for mobile calibration kits or fixed bench use. The durable finish simplifies cleaning and helps prevent corrosion-related issues in humid environments. Label space and compact dimensions make inventory management straightforward, supporting orderly storage and rapid identification of the contained 20 g weight. Combining robust materials with considered ergonomics contributes to workflow efficiency and asset longevity. Choose the KERN aluminium-protected case for secure storage of precision weights and contact Metav Werkzeuge in Emmerich for ordering or technical consultation via info@metav-werkzeuge.com or by phone Technical Data Article number: 317 SKU: 317-050-600 Manufacturer: KERN GTIN: 4045761222663 Country of origin: CN Commodity code: 84239090 Net weight: 0.18 kg Core specifications Suitable for nominal values: 20 g Calibration classes: E1–M3 Eclass: 21100103 Materials and special features Material: Aluminium Interior: padded Design: button/compact for single weights Product group: Aluminium-protected cases FAQ What nominal weight fits this case? The aluminium-protected case is sized for a single nominal value of 20 g, optimised for button/compact weight formats. Which calibration classes are supported? This case is specified for precision classes E1–M3, making it suitable for high-accuracy laboratory and workshop calibration tasks. Is the interior suitable for regular transport? Yes, the padded interior prevents movement and surface damage, supporting safe transport within mobile calibration kits. What material is the housing made from? The housing is made from aluminium, providing a robust exterior that resists knocks and abrasion during routine use. Who supplies this case and how does it fit into a calibration workflow? The case is manufactured by KERN and is intended to protect single calibration weights during storage and handling, aiding consistent measurement procedures. KERN · Origin: China · SKU: 317-050-600

Take advantage of a lightweight aluminium shell with a padded interior and secure layout for 50 g single calibration weights in accuracy classes E1–M3; order directly via Metav Werkzeuge or consult our specialists for model advice and fast supply from Emmerich. KERN Aluminium-protected case 317-060-600 — padded protection for 50 g single weights (E1–M3) The Aluminium-protected case by KERN is designed to store and protect single calibration weights of 50 g, combining stable outer protection with a cushioned inner layout for laboratory and workshop environments. Aluminium shell with padded interior Designed for 50 g single calibration weights Compatible with weight classes E1–M3 Robust protection for button/compact weights Secure protection that preserves accuracy The lightweight aluminium construction provides rigid external protection while keeping the overall mass low for convenient handling. Internally, the padded interior cushions delicate single weights and reduces transmission of shocks and abrasion during transport. By protecting the geometry and surface condition of calibration pieces, the case helps maintain the stated tolerance of high-precision weights, ensuring the reliability of subsequent measurements. This results in fewer recalibrations and a more predictable calibration schedule, which supports production planning and quality control processes. Clear compatibility for metrology workflows Engineered for use with single weights in the 50 g nominal size and suitable for accuracy classes E1–M3, the case matches common calibration and verification routines in laboratories and service departments. The internal layout accommodates button/compact weight shapes used in routine checks and reference calibrations, simplifying storage and retrieval during measurement cycles. The selected specification reduces handling errors and speeds up set preparation, supporting efficient workflows in both calibration services and industrial metrology applications. Built for durability and practical use The product combines corrosion-resistant external material with a tailored interior to withstand frequent use and transport. The compact, padded etui keeps items organised and prevents contact-related damage between individual weights. The robust design supports long service life under workshop conditions and contributes to consistent measurement performance. Where traceability and preservation of nominal values matter, this protective case becomes a practical component of a comprehensive measurement system. Contact Metav Werkzeuge for specialist advice on the KERN aluminium-protected case 317-060-600 or to arrange supply directly from our Emmerich warehouse Technical Data Article number: 317-060-600 SKU: 317-060-600 Manufacturer: KERN GTIN: 4045761222670 Material: Aluminium For weights: 50 g For classes: E1–M3 Facts Weight: 0.18 kg Commodity code: 84239090 eCl@ss: 21100103 Origin country: CN Special features Padded interior Designed for single/button/compact weights Aluminium-protected shell Suitable for calibration and transport FAQ Is this case suitable for 50 g calibration weights? Yes. The KERN aluminium-protected case 317-060-600 is designed specifically for single 50 g calibration weights and their typical button/compact form. Which accuracy classes are supported by the case? The case is compatible with weights in accuracy classes E1–M3, making it suitable for a wide range of laboratory and workshop calibration needs. Does the case protect weights during transport? Yes. The aluminium exterior combined with a padded interior reduces shock transmission and prevents surface damage to weights during handling and transport. Manufacturer: KERN — Origin: China — Contact: not provided

Take advantage of secure storage, low weight and precision compatibility to protect sensitive calibration weights; combine aluminium protection with a padded interior for reliable handling and long-term preservation. Order the case directly via Metav Werkzeuge or consult our specialists for tailored advice. Aluminium-protected Case 317-070-600 — for 100 g single weights, E1–M3 (KERN) The Aluminium-protected Case is a padded storage and transport solution designed for single calibration weights in laboratory and workshop metrology environments. Aluminium-protected housing for single weights Padded interior for shock and scratch protection Compatible with 100 g calibration weights Suited for accuracy classes E1–M3 Secure storage that preserves calibration integrity The robust aluminium housing combines lightweight handling with a protective shell that reduces the risk of external damage and contamination to sensitive masses. Internally, the padded lining cushions individual weights and prevents micro-abrasion, which helps maintain calibration integrity over repeated transport and handling. For calibration routines and mobile checks, this containment reduces rework and downtime by keeping reference weights in ready-to-use condition. Designed for standards-driven workflows Compatibility with 100 g nominal weights and accuracy classes E1–M3 ensures the case meets the organisational needs of laboratories, service technicians and quality departments. The internal layout accommodates single, button-style or compact weights, offering immediate visual order and quick retrieval during verification tasks. This arrangement supports efficient processes and consistent measurement results, which is particularly valuable when multiple weights are in regular use. Built for practical workshop and laboratory use With a gross weight of 0.18 kg, the case is lightweight yet sturdy enough for daily handling and storage. Manufactured by KERN, the product carries the clear article identity SKU 317-070-600 and is suitable where secure, mobile protection of individual masses is required. The compact footprint simplifies storage on workbenches or in instrument cabinets and contributes to an uncluttered, professional metrology environment. Contact Metav Werkzeuge in Emmerich by email at info@metav-werkzeuge.com or phone +49 2822 7131930 for expert guidance on the KERN aluminium-protected case 317-070-600 and its suitability for specific calibration setups. Technical Data Article number: 317-070-600 Manufacturer: KERN Material: Aluminium Suitable for: 100 g single weights Accuracy classes: E1–M3 Special feature: Padded interior Facts Weight: 0.18 kg GTIN: 4045761222687 Tariff number: 84239090 Special features Aluminium-protected case Padded lining Designed for button/compact single weights Origin: CN FAQ Is this case suitable for 100 g calibration weights? Yes. The aluminium-protected case is specified for 100 g nominal weights and is laid out for single, button-style and compact masses. Which accuracy classes fit inside the case? The case accommodates weights from accuracy classes E1–M3, making it suitable for high-precision and routine verification work. What material is the case made from? The exterior shell is aluminium and the interior is padded to prevent scratches and shocks to stored weights. Who manufactures this product and how is it identified? This case is manufactured by KERN and identified as SKU 317-070-600, enabling straightforward ordering and inventory tracking. Is the case suitable for mobile calibration work? Yes. The combination of protective aluminium housing and padded interior makes it appropriate for transport between laboratory and on-site locations without compromising stored weights. Metav Werkzeuge, Emmerich am Rhein, Germany · info@metav-werkzeuge.com · +49 2822 7131930

Take advantage of the combination of robust protection, a lightweight aluminium shell and a padded interior to keep calibration weights safe and serviceable; order directly via Metav Werkzeuge or contact our consultants for tailored advice. KERN Aluminium-protected case for single weights 200 g (E1–M3) — 317-080-600 The Aluminium-protected case offers secure, padded storage for single calibration weights of nominal 200 g, designed for button/compact formats and accuracy classes E1 to M3. Aluminium exterior for robust protection Padded interior for secure weight storage Compatible with 200 g single weights Suited to accuracy classes E1–M3 Robust protection that preserves measurement integrity The combination of a solid aluminium shell and a padded interior provides reliable physical protection for precision masses, reducing the risk of dents, scratches and contamination during storage and transport. This protective concept is particularly important for calibration items in button or compact format, where surface condition directly affects weighing accuracy. By shielding weights from shocks and particulate ingress, the casing helps to maintain calibration intervals and reduces the likelihood of out-of-tolerance readings, supporting uninterrupted metrological workflows. Maintains traceability for calibration classes and routines Designed specifically for 200 g single weights across E1–M3 accuracy classes, the case supports proper handling and documented traceability in calibration processes. Higher-accuracy classes such as E1 demand careful storage to protect the reference mass; this case provides the controlled mechanical environment required. For laboratories and workshops that manage a mix of high-precision and routine weights, the organized storage reduces handling time and the risk of cross-contamination, thereby protecting measurement results and simplifying compliance with calibration standards. Practical, lightweight solution for workshop and lab logistics Weighing only 0.18 kg, the case is easy to handle and integrates into mobile calibration kits or fixed instrument benches without adding significant bulk. The model KERN 317-080-600 is intended for technicians and metrology professionals who require durable, space-efficient storage that supports frequent transport between workstations or on-site inspection rounds. The compact footprint and secure interior reduce the need for repeated recalibrations caused by accidental damage, improving operational uptime and safeguarding investment in precision weights. For professional procurement and further technical clarification, contact Metav Werkzeuge in Emmerich — email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss suitability and delivery options for the KERN 317-080-600 aluminium-protected case Technical data Article number: 317-080-600 Manufacturer: KERN GTIN: 4045761222694 Country of origin: CN Facts Net weight: 0.18 kg Suitable for weights: 200 g Accuracy classes: E1–M3 Eclass: 21100103 Special features Material: Aluminium Interior: padded For: single weights (button/compact) Product group: aluminium-protected case FAQ Which weights fit this aluminium-protected case? The aluminium-protected case by KERN (SKU 317-080-600) is designed for single 200 g weights in button/compact format and fits items intended for accuracy classes E1 through M3. Is the case suitable for transporting reference weights between sites? Yes. The KERN 317-080-600 combines a rigid aluminium shell with a padded interior to protect reference masses during transport and to minimise risk of damage that would affect calibration. Can this case be used in a calibration laboratory environment? The case is suitable for laboratory storage of calibration weights; by protecting surfaces and preventing contamination it supports traceability and helps to maintain the performance of weights used in certified calibration routines. What material and origin are specified for the case? The case is made from aluminium, features a padded interior and is listed with country of origin CN under the KERN 317-080-600 designation. KERN — Country of origin: CN — Address: not specified — Contact: not specified

Combining a durable aluminium outer shell with a padded interior and compatibility for 500 g single calibration weights in classes E1–M3, this case provides reliable protection and organised storage for precision assets. Order the aluminium-protected case directly via Metav Werkzeuge or request consultancy if technical advice is required. KERN 317-090-600 — Aluminium-protected case for 500 g single weights (E1–M3), padded A KERN 317-090-600 aluminium-protected case engineered to safeguard single calibration weights in button/compact form during storage and transport. Aluminium outer shell for robust protection Padded interior for secure weight storage Compatible with 500 g E1–M3 single weights Keep calibration assets safe and inspection-ready The robust aluminium housing combines low weight with dependable protection, reducing the risk of mechanical shocks and environmental exposure that can affect measurement accuracy. The interior is padded, providing a secure seat for a single calibration element in the button/compact form, which helps maintain the certified condition of the weight and avoids abrasion during handling. This construction supports routine calibration workflows by preserving the reference weight’s condition, so quality assurance processes remain consistent and traceable. Streamlined handling and organised storage for the workshop A compact protective case simplifies storage and transport logistics, allowing calibrated weights to be carried between stations or to external inspections without additional packaging. At only 0.18 kg, the enclosure is lightweight yet sturdy, aiding technicians who move equipment frequently. The layout is optimised for single weights, facilitating quick identification and access while reducing handling time—an efficiency gain that contributes to fewer disruptions in measurement routines and faster turnaround for verification tasks. Designed for professional calibration environments Compatibility with classes E1–M3 makes this case suitable for a range of high-precision calibration standards, supporting both laboratory and in-plant requirements. Manufactured by KERN, the case meets the practical needs of metrology professionals who prioritise asset protection and traceability. Combined with Metav’s role as a quality filter and supplier from Emmerich, the product forms part of a supply chain designed to make high-precision measurement tools accessible and reliable for workshops and industry alike. For tailored advice on integrating the KERN 317-090-600 aluminium-protected case into existing calibration procedures, contact Metav Werkzeuge — email info@metav-werkzeuge.com or call +49 2822 7131930 for prompt assistance. Technical data Article number: 317-090-600 SKU: 317-090-600 GTIN: 4045761222700 Manufacturer: KERN eClass: 21100103 Tariff code: 84239090 Facts Nominal value compatibility: 500 g Classes: E1–M3 Weight: 0.18 kg Origin: CN Product group: Aluminium-protected cases Special features Material: Aluminium Interior: padded Suitable for: single weights (button/compact) Design: protective case for single calibration weights FAQ Is this case suitable for a 500 g calibration weight? The KERN 317-090-600 is specified for 500 g single weights and supports classes E1–M3, making it suitable for that nominal value. Which weight forms fit in the case? The case is intended for single weights in the button/compact form, providing a secure fit and padded protection for this type. Does the enclosure protect during transport? Yes, the aluminium outer shell combined with the padded interior offers robust protection to prevent damage in routine transport and storage. Can this case be used for other weight classes? The enclosure is specified for classes E1–M3; use outside these classes should be verified against the specific dimensions and fit of the weight. Who manufactures the case and where is it supplied from? The case is produced by KERN and is supplied via Metav Werkzeuge’s logistics from Emmerich. KERN — Origin: CN — Contact: not provided

Accurate handling of small calibration masses is achieved through the combination of stainless-steel construction, high-quality plastic tips and a practical 136 mm length; order the KERN 315-247 tweezers directly via Metav Werkzeuge or consult our product specialists for application advice. KERN 315-247 — Calibration tweezers with straight plastic tips A KERN 315-247 tweezers designed for secure, non-marking handling of small calibration weights in metrology and workshop environments. Straight stainless-steel tips for secure grip High-quality plastic tips to protect weights 136 mm length for precise, ergonomic handling Secure handling for exact calibration results For precision tasks, secure handling is essential. The instrument offers a controlled grip on calibration masses up to ≤ 5 g, compatible with classes E1–M3, which helps reduce handling errors and improves repeatability in weighing procedures. Constructed to meet the demands of metrology, the tool supports consistent measurement routines and minimises the risk of surface contact that could alter a weight’s value. By using a purpose-made tweezer rather than fingers, the chance of contamination and thermal transfer is lowered, contributing to more reliable results in daily quality checks. Durable build with gentle contact to sensitive masses A corrosion-resistant body delivers long service life while the high-quality plastic tips preserve delicate surfaces. The combination of stainless steel strength and soft tip protection ensures that fine calibration weights are neither scratched nor displaced during handling. The straight tip geometry provides direct visual control when picking up minute masses, and the construction requires minimal maintenance. This balance of durability and gentle contact supports both routine laboratory work and demanding workshop environments where component care matters. Practical design to streamline laboratory and workshop workflows Measuring 136 mm in length and weighing about 0.02 kg, the tweezers are optimised for comfortable, precise handling throughout repetitive tasks. The tool’s length offers ergonomic reach without compromising manoeuvrability at the balance pan, enabling steady placement and removal of weights during calibration cycles. Designed for integration into existing metrology workflows, the device supports standard operating procedures and helps technicians maintain efficient throughput while preserving measurement integrity. For further clarification on application limits or compatibility with specific test procedures, Metav’s consultants can advise on best practice. For supply and technical guidance on the KERN 315-247 tweezers, contact Metav Werkzeuge in Emmerich — email info@metav-werkzeuge.com or phone +49 2822 7131930 Technical data SKU: 315-247 Manufacturer: KERN GTIN: 4045761222922 Specifications Length: 136 mm Weight: 0.02 kg Suitable for weights: ≤ 5 g (classes E1–M3) Features Material: stainless steel with high-quality plastic tips Tip design: straight tips FAQ Which calibration weight classes can be handled with these tweezers? The tweezers are suitable for calibration masses up to ≤ 5 g and compatible with classes E1–M3, making them appropriate for fine-weight handling in precision weighing tasks. Are the plastic tips safe for delicate weight surfaces? Yes, the high-quality plastic tips are designed to protect sensitive surfaces and reduce the risk of scratching or marking during handling of calibration weights. What are the dimensions and mass of the tweezers? The tweezers measure 136 mm in length and have an approximate mass of 0.02 kg, providing a balance of reach and lightness for repeated use. Is this tool suitable for routine laboratory workflows? The design supports routine metrology and workshop workflows by offering ergonomic handling, controlled grip and surface protection, which together help maintain measurement consistency. Who supplies the product and where can further technical advice be obtained? The product is supplied by KERN (SKU 315-247); for application-specific advice and supply options, Metav Werkzeuge can provide consultancy and ordering information. KERN

Take advantage of secure handling of small calibration weights, robust stainless steel construction and a compact 105 mm length for precise control; order the tweezers directly via Metav Werkzeuge or contact our consultants for application advice. Pinzette 315-243 — Precision tweezers by KERN, stainless steel, 105 mm The Pinzette 315-243 is a precision tweezer designed for the secure handling of small calibration weights in laboratories and workshop environments. Secure grip for micro calibration weights Stainless steel construction Length 105 mm for fine control Suitable for 1 mg – 200 g (E1 – M3) Secure handling for trace and routine calibration tasks The compact design delivers a secure grip for very small test weights, reducing the risk of slippage and accidental contact. Its dimensions, including the 105 mm length, allow for controlled, repeatable handling that supports efficient calibration workflows. This contributes to fewer handling errors and a more consistent weighing routine when working with weights from 1 mg – 200 g. Durable construction that keeps processes dependable Manufactured in stainless steel, the tool combines durability with low maintenance, ensuring longevity in daily metrology use. The robust construction helps maintain geometric stability and handling precision under repeated use, which supports reliable measurement results and reduces downtime for replacements. The design suits both laboratory benches and on-site calibration setups where space and dexterity matter. Practical compatibility and metrology clarity Designed for compatibility with standard calibration classifications, the tweezers are suitable for weights in classes E1 – M3, covering high-accuracy laboratory weights as well as routine workshop standards. For users less familiar with weight classes: these designations indicate recognised accuracy ranges used by calibration professionals and metrology services, ensuring the tool is appropriate for precise, standard-compliant handling. Confidence through expert supply and service Sourcing tools from a trusted partner simplifies procurement and post-sale support. Metav Werkzeuge stands for democratisation of precision, offering an extensive range of metrology supplies from its base in Emmerich. With a broad catalogue and a long-standing customer base, the emphasis is on dependable availability and a clear supply chain that supports uninterrupted calibration operations. Contact Metav Werkzeuge for tailored advice on the KERN 315-243 tweezers and to confirm suitability for specific weight classes — email info@metav-werkzeuge.com or call +49 2822 7131930 for fast guidance from our Emmerich team Technical data Article number: 315 SKU: 315-243 Manufacturer: KERN GTIN: 4045761067615 Length: 105 mm Net weight: 0.02 kg Facts Suitable weight range: 1 mg – 200 g Applicable weight classes: E1 – M3 Material: Stainless steel Special features Secure gripping geometry for small calibration weights Compact format for precise handling and repeatability Designed for laboratory and workshop use Rapid dispatch and broad metrology assortment available from supplier FAQ How small a weight can be handled with these tweezers? The Pinzette 315-243 from KERN is suitable for handling weights from 1 mg up to 200 g, covering the usual micro and small calibration weights used in precise weighing tasks. What material is the tool made from and why does that matter? The tweezers are made from stainless steel, giving corrosion resistance and dimensional stability that support consistent handling and long service life in metrology environments. Are these tweezers suitable for laboratory-grade calibration weights? Yes, the KERN 315-243 is specified for weights in classes E1 – M3, which includes high-accuracy laboratory weights as well as standard workshop classes, making it appropriate for professional calibration work. What are the physical dimensions and weight of the tweezers? The tweezers measure 105 mm in length and have a net weight of 0.02 kg, offering a compact tool that balances control with minimal contact force. Metav Werkzeuge, Emmerich am Rhein, Email: info@metav-werkzeuge.com, Tel: +49 2822 7131930

Benefit from the combination of stainless steel construction and silicone‑coated tips plus a 250 mm reach for secure handling of calibration weights from 500 g to 2 kg (classes E1–M3); order directly via Metav Werkzeuge or consult our specialists for advice. Precision Tweezers 315-245 — stainless steel with silicone‑coated tips by KERN A Precision Tweezer 315-245 designed for secure, non‑marking handling of small calibration weights in laboratories and workshops. Corrosion‑resistant stainless steel construction Silicone‑coated tips for gentle grip 250 mm length for extended reach For 500 g–2 kg weights, classes E1–M3 Precise handling that protects measurement integrity The long, slim design offers a controlled grip that reduces handling errors and the risk of contamination when working with calibration masses. The combination of a corrosion‑resistant stainless steel body and silicone‑coated tips provides a reliable, non‑abrasive contact surface, preserving surface finish and mass accuracy. Suitable for weights in the range 500 g–2 kg, these tweezers are particularly useful where repeatable, traceable results are required for quality assurance and calibration tasks. Materials and coating that reduce maintenance and marking Constructed from stainless steel, the instrument resists corrosion and is straightforward to clean, which helps maintain hygienic conditions and prolong tool lifetime. The silicone‑coated tips cushion the contact area to prevent scratches or dents on sensitive weight surfaces, lowering the likelihood of rework or rejection during audits. For teams seeking consistent handling with minimal impact on weight tolerances, this combination reduces the need for frequent component replacement and supports traceable measurement practice. Work‑flow benefits from extended reach and ergonomic design With a length of 250 mm, the tweezers enable safe handling of weights in hoppers, cabinets and balance pans without close manual contact, improving operator safety and efficiency. The extended reach and balanced form factor reduce awkward postures and make repetitive tasks less fatiguing, supporting continuous operation in production or calibration labs. By reducing the potential for handling‑related measurement deviations, these tweezers contribute directly to smoother procedures and reliable results. Contact Metav Werkzeuge in Emmerich for tailored advice on the KERN Precision Tweezers 315-245 and expert support with specifications and applications Technical data Article number: 315 SKU: 315-245 Manufacturer: KERN GTIN: 4045761003460 Facts Length: 250 mm Weight: 0.1 kg Suitable for weights: 500 g–2 kg Special features Stainless steel construction Silicone‑coated tips Secure gripping of small calibration weights Suitable for weight classes E1–M3 FAQ Are these tweezers suitable for precision calibration work? The KERN precision tweezers 315-245 are designed for calibration tasks and are suitable for handling weights from 500 g to 2 kg, including classes E1–M3. How do the silicone‑coated tips protect the weights? Silicone‑coated tips on the 315-245 provide a soft, non‑marking contact surface that prevents scratches and preserves the surface finish of calibration masses. Can the tweezers be cleaned without damaging the coating? Yes, the stainless steel body and silicone tips tolerate routine cleaning; use suitable, non‑abrasive cleaning agents to maintain tip integrity and corrosion resistance. What advantage does the 250 mm length provide? The 250 mm reach allows secure handling in balance pans and storage boxes without close manual contact, improving safety and reducing handling errors. Which weight accuracy classes are compatible with these tweezers? The tweezers are specified for use with weights in classes E1 to M3, covering high‑precision laboratory masses through standard workshop weights. Metav Werkzeuge | Emmerich am Rhein | info@metav-werkzeuge.com | +49 2822 7131930

Combining absolute micro-level accuracy with a robust stainless steel construction and OIML Class E2 conformity, the weight supports repeatable calibration results and reliable traceability. Order the KERN 318-01 via Metav Werkzeuge or consult our specialists for calibration and handling advice. KERN Milligram weight 318-01 — OIML E2, 1 mg polished stainless-steel disc The Milligram weight 318-01 is a high-precision mass standard for the calibration of analytical balances and microbalances in laboratories and quality control environments. OIML Class E2 for high precision Nominal value 1 mg, tolerance 0.006 mg Polished stainless-steel disc shape DAkkS calibration recommended Precision that meets regulatory needs for micro-mass work The polished stainless steel disc is manufactured to meet OIML Class E2, delivering a nominal mass of 1 mg with a stated tolerance of 0.006 mg. This classification indicates suitability for high-accuracy calibration tasks where traceability and conformity to international regulations are required. Explaining the term: OIML classes define permissible deviations for weights; E2 is used where analytical balances and laboratory checks demand very tight limits. The precision reduces measurement uncertainty and supports consistent results across repeated calibrations, improving process reliability in quality assurance workflows. Durable design and proper handling to protect measurement integrity Constructed from corrosion-resistant stainless steel with a polished finish, the disc form minimises surface contamination and eases cleaning. For safe handling and to avoid transfer errors, use tweezers or gloves and store the mass in a protective case; an etui is recommended due to the small nominal value and sensitivity. Regular calibration is essential: a DAkkS calibration provides national traceability and is advised for nearly all professional applications, ensuring that the mass standard retains documented conformity and can be relied upon during audits or certification procedures. Integrating the mass standard into laboratory routines Incorporating this micro-mass into calibration schedules enhances the comparability of results between instruments and sites. The combination of OIML Class E2 conformity and the polished stainless-steel construction lowers the long-term cost of rework by reducing drift and contamination-related errors. For procurement and logistic certainty, Metav Werkzeuge supplies the mass with transparent handling and delivery from Emmerich; relying on a supplier with an extensive product range and documented experience supports uninterrupted operation in laboratories and production control points. For precise micro-mass needs, choose the KERN 318-01 and contact Metav Werkzeuge in Emmerich for DAkkS calibration, protective etui options and secure dispatch — info@metav-werkzeuge.com | +49 2822 7131930 Technical data Article number: T318-A SKU: 318-01 GTIN: 4045761240407 Manufacturer: KERN Numbers / core technical data Nominal value: 1 mg Tolerance (OIML): 0.006 mg OIML class: E2 Tariff number: 84239090 ECLASS: 32120103 Special features / materials Material: stainless steel Surface: polished Shape: disc Recommended accessory: protective etui Calibration recommendation: DAkkS calibration recommended Origin: CN FAQ What level of accuracy does this mass provide? The KERN Milligram weight 318-01 is specified to OIML Class E2, providing a nominal mass of 1 mg with a tolerance of 0.006 mg, suitable for high-precision calibration tasks. Can the mass be used for routine balance checks? Yes, the disc is intended for analytical and microbalance verification; regular checks and documented DAkkS calibration keep results traceable and auditable for routine quality control. Is special handling required to avoid measurement errors? Handle the mass with tweezers or gloves and store it in a protective etui to prevent contamination and mass transfer; the polished stainless-steel surface reduces adherence of residues. Is DAkkS calibration necessary for this product? A DAkkS calibration is recommended for almost all professional applications and provides national traceability equivalent for regulatory and laboratory requirements. Will the weight remain available for EC first verification after November 2025? EC first verification for weights will not be possible from 30 November 2025; for ongoing professional use, the KERN 318-01 should be paired with a DAkkS calibration as advised. KERN — Origin: CN — GTIN: 4045761240407

Take advantage of pinpoint accuracy and robust stainless-steel construction — the OIML E2 classification and 0.006 mg tolerance ensure reliable micro-calibration results; order directly via Metav Werkzeuge or consult the team for tailored calibration options. Milligram weight 318-02 — OIML E2, 2 mg, stainless steel (KERN) The Milligram weight 318-02 is a polished stainless-steel disc designed for high-precision calibration of microbalances and analytical scales in laboratories and fine workshops OIML class E2 precision Polished stainless-steel disc 0.006 mg tolerance for micro-calibration Precise micro-calibration for reliable measurement chains The OIML E2 rating and 2 mg nominal value make this weight a suitable reference for the calibration of high-resolution balances. With a specified tolerance of 0.006 mg, the standard supports traceable adjustments and performance checks of microbalances used in quality control and research environments. The polished stainless steel construction reduces surface contamination and facilitates careful handling; the disc shape minimises footprint while offering stable seating on balance pans. Technical terms: OIML E2 indicates suitability for metrological tasks requiring tight uncertainty limits, while tolerance denotes the maximum permissible deviation from the nominal mass. Handling, compliance and calibration recommendations for safe use Due to the extreme accuracy of this class, a protective carrying case is recommended to prevent contamination and mechanical damage during transport and storage; a range of suitable cases is available under accessories. Note that EC initial approvals for calibration weights will no longer be possible after 30 November 2025; for most laboratory applications a DAkkS calibration is recommended and available as an equivalent traceable certificate. The weight's polished finish and compact disc form simplify cleaning and reduce handling-induced errors, supporting reproducible calibration routines in routine and specialist metrology tasks. Proven manufacturing and supplier assurance for routine workflows Manufactured by KERN, this milligram reference is intended for environments that demand consistent metrological quality. Combining the precise manufacturing tolerances with a recommended DAkkS certificate provides documented traceability for audits and quality records. As a supplier committed to democratising precision, Metav Werkzeuge offers access to this standard alongside calibration services and accessory recommendations, helping workshops and labs centralise procurement while maintaining rigorous quality assurance. The compact design and clear specification support efficient integration into existing calibration procedures. Contact Metav Werkzeuge in Emmerich for expert guidance on the KERN 318-02 milligram weight, DAkkS calibration options and recommended protective cases — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data SKU: 318-02 Article number: T318-A Manufacturer: KERN GTIN: 4045761240414 Nominal value: 2 mg Material: stainless steel Form: disc Facts OIML class: E2 Tolerance: 0.006 mg HS code: 84239090 eClass: 32120103 Origin: CN Special features Polished stainless-steel surface Disc shape for microbalances Milligramme reference for micro-calibration Protective case recommended due to high accuracy DAkkS calibration recommended EC initial approval not possible after 30.11.2025 FAQ What accuracy can be expected from this weight? The KERN 318-02 milligram weight meets OIML E2 specifications with a tolerance of 0.006 mg, suitable for precise micro-calibration tasks. Is a calibration certificate available for this weight? A DAkkS calibration is recommended for the 318-02 and is offered as a traceable certificate; note that EC initial approvals are not possible after 30 November 2025. What material and form does the reference have? The reference is a polished stainless-steel disc designed to sit stably on microbalance pans and to be cleaned and handled with minimal contamination risk. Which balances is this weight suitable for? This milligram reference is intended for microbalances and high-resolution analytical balances where sub-milligram accuracy checks are required. Is a protective case necessary for everyday use? Due to the very fine tolerance, a protective case is strongly recommended to avoid contamination and mechanical damage; Metav lists compatible cases in the accessories section. Manufacturer: KERN — Supplied via Metav Werkzeuge, Emmerich — Contact: info@metav-werkzeuge.com, +49 2822 7131930

Combine OIML E2 accuracy with a polished stainless steel disc and a tight 0.006 mg tolerance for repeatable microbalance verification; order directly via Metav Werkzeuge or request advice from our consultants. KERN 318-03 Milligram Weight (OIML E2, 5 mg) — Polished Stainless Steel KERN 318-03 Milligram Weight is a polished stainless steel disc designed for high-precision calibration and verification of microbalances and laboratory scales. OIML Class E2 accuracy Nominal value 5 mg Polished stainless steel disc Tolerance 0.006 mg Precision that supports reliable calibration The OIML E2 classification denotes a high-precision calibration standard suitable for microbalance checks and laboratory verifications. With a nominal value of 5 mg and a declared tolerance of 0.006 mg, this milligram weight is intended to provide reproducible reference mass for sensitive measurement chains. Such a tight tolerance reduces uncertainty in calibration routines and allows measurement results to be traced with confidence. The classification is recognised in international metrology practice and is particularly relevant where microgram-level stability is required. Design and material tailored for consistent results Manufactured from stainless steel with a polished finish and presented in a compact disc shape, the weight is engineered to minimise surface contamination and facilitate handling on microbalances. The polished surface reduces particulate adhesion, which supports consistent readings during repeated use. Given the precision class of this item, a protective case is recommended to avoid contamination or wear during storage and transport; accessories for secure storage are listed in the accessory section and should be considered for long-term stability. Application scope and calibration guidance Intended for laboratory and metrology environments, the weight is suitable for routine verification of microbalances and for use in controlled calibration procedures. The product is delivered as a single 5 mg reference mass and is appropriate where OIML E2 standards are required. Note that the EG initial verification of calibration weights will no longer be available after 30 November 2025; a DAkkS calibration is recommended as an equivalent route for many applications. For documentation and traceability, calibration certificates can be organised via Metav Werkzeuge as part of the procurement process. Contact Metav Werkzeuge in Emmerich for expert advice on DAkkS calibration, case recommendations and ordering of the KERN 318-03 Milligram Weight Technical Data Article number: T318-A SKU: 318-03 GTIN: 4045761240421 Manufacturer: KERN Origin: CN Facts Nominal value: 5 mg Tolerance (OIML): 0.006 mg OIML class: E2 Commodity code: 84239090 Special features Material: Polished stainless steel Form: Disc (plättchenform) Designed for microbalance and laboratory verification Protective case recommended due to high accuracy DAkkS calibration recommended; EG initial verification ends 30.11.2025 FAQ What level of accuracy can be expected from this weight? The KERN 318-03 Milligram Weight is manufactured to OIML E2 standards and offers a declared tolerance of 0.006 mg, making it suitable for high-precision microbalance verification. Is a calibration certificate available for the 318-03? A DAkkS calibration is recommended and can be arranged for the KERN 318-03 Milligram Weight; this provides documented traceability for laboratory use. Which storage conditions are advised for best long-term stability? Storage in a clean, dry environment and use of a protective case are advised to preserve the polished stainless steel surface and maintain the 0.006 mg tolerance. Can the weight be used for routine balance checks in industry? Yes. The 5 mg nominal value and OIML E2 classification make the product suitable for routine verification of microbalances and precise scale systems. Metav Werkzeuge, Emmerich am Rhein — Email: info@metav-werkzeuge.com — Phone: +49 2822 7131930

Precise milligram calibration with OIML Class E2 accuracy and a nominal value of 10 mg, combined with a polished stainless steel plate that minimises contamination and drift. Ideal for traceable laboratory checks and routine industrial verifications; order the milligram weight directly via Metav Werkzeuge or ask our consultants if needed. Milligram weight 318-04 — KERN calibration plate, OIML Class E2, 10 mg, polished stainless steel The Milligram weight 318-04 is a precision plate weight intended for calibrating laboratory and industrial balances where microgram-level accuracy and traceability are required OIML Class E2 accuracy Nominal value 10 mg Tolerance ±0.008 mg Polished stainless steel plate Ensure micro-scale results with OIML-class precision For applications that demand repeatable tiny-mass measurements, the combination of OIML Class E2 and a nominal 10 mg value provides a reproducible reference point. The specified 0.008 mg tolerance quantifies maximum permissible error and allows technicians to evaluate balance performance against an international standard. Using a defined reference weight reduces the need for time-consuming rework, supports quality documentation and helps maintain production throughput by ensuring instruments remain within specification. Reduced contamination and stable readings through design and material The polished stainless steel surface lowers particle adhesion and simplifies cleaning, which in turn reduces drift between calibrations. The plate form offers a compact footprint for microbalances while minimising airflow effects during handling. As a result, calibration routines are faster and less error-prone, helping to cut downtime. For environments where ambient contamination or frequent handling is likely, the material choice supports longer intervals between service cycles and contributes to consistent measurement quality. Traceability, calibration options and practical handling advice Traceability is essential for auditability and process control; therefore a DAkkS calibration is recommended, especially because statutory EG initial verification will not be possible after 30 November 2025. A DAkkS certificate provides documented equivalence for most industrial and laboratory applications and supports compliance with internal quality systems. Due to the sensitivity of milligram weights, storage in a suitable case is advised to protect the reference mass from contamination and mechanical damage. Regular visual inspection and controlled handling minimise uncertainty and prolong reliable service life. For traceable micro-scale calibration and DAkkS calibration options, contact Metav Werkzeuge to arrange supply of the KERN 318-04 or to discuss the right calibration route for the application. Technical Data Article number: T318-A / SKU 318-04 GTIN: 4045761240438 Manufacturer: KERN Origin: CN Core specifications Nominal value: 10 mg OIML class: E2 Tolerance: 0.008 mg Form: Plate Materials & special features Material: Polished stainless steel Recommended: Use protective case due to high accuracy Calibration recommendation: DAkkS calibration advised Regulatory note: EG first verification not possible after 30.11.2025 Commodity code: 84239090 FAQ What level of accuracy does this weight provide? The KERN milligram weight 318-04 is OIML Class E2 with a tolerance of 0.008 mg, providing the micro-level accuracy required for sensitive balance checks. Is a calibration certificate available for this weight? Yes; a DAkkS calibration is recommended for the 318-04 to ensure traceability and documented equivalence for most laboratory and industrial purposes. How should the weight be stored to maintain accuracy? Store the 10 mg plate in a protective case and handle with clean gloves or forceps to avoid contamination; polished stainless steel benefits from gentle cleaning and minimal handling. Can this weight be used for routine balance verification? The 318-04 is suitable for routine verification of high-precision balances where a 10 mg reference is appropriate, supporting process control and instrument performance checks. Why choose a polished stainless-steel plate over other forms? Polished stainless steel reduces particle adhesion and is easier to clean, which helps maintain stable readings and extends intervals between recalibrations. Metav Werkzeuge, Emmerich am Rhein — eMail: info@metav-werkzeuge.com — Telefon: +49 2822 7131930 — WhatsApp: +49 170 2837271

Benefit from OIML E2 accuracy, a 20 mg nominal value and a polished stainless steel plate for stable, repeatable results; order the Milligram weight directly via Metav Werkzeuge or ask our consultants if needed. Milligram weight KERN 318-05 — 20 mg OIML E2, polished stainless steel plate A Milligram weight KERN 318-05 designed for calibration of precision balances and laboratory scales, delivering traceable microgram-level performance in demanding metrology workflows OIML class E2 accuracy Nominal value 20 mg Polished stainless steel plate form Tolerance ±0.01 mg Traceable accuracy for high‑precision calibration The polished stainless steel construction and OIML E2 classification ensure a stable reference mass for sensitive instruments. The nominal 20 mg size is suited to microbalance verification where minimal drift and predictable handling are essential; the declared ±0.01 mg tolerance gives a clear specification for uncertainty budgets. For procurement and quality management, the measurable parameters support certificate-based traceability and allow integration into ISO/IEC 17025–aligned calibration plans. Robust design tailored to metrology workflows A plate-form geometry reduces edge effects during placement on pans of analytical balances, while the polished surface minimises contaminant adhesion and eases cleaning. The stainless finish is corrosion-resistant and compatible with common laboratory environments, contributing to long service intervals and reliable repeatability. Handling protocols benefit from the compact form: secure transport in a recommended case preserves accuracy and reduces the need for frequent re-calibration. Compliance, calibration and recommended use Note that EU initial verification (EG‑Ersteichung) of calibration weights will not be available from 30 November 2025; therefore a DAkkS calibration is recommended for most traceable applications. For high-accuracy records, a DAkkS certificate demonstrates conformity with national standards and supports audit requirements. The product is supplied as a precision reference mass for balance testing, routine checks and laboratory verification tasks where documented traceability and low uncertainty are required. For DAkkS calibration advice or to order the KERN 318-05 from Metav Werkzeuge in Emmerich, please contact info@metav-werkzeuge.com or call +49 2822 7131930 for personalised consulting and supply Technical data Article number: T318-A SKU: 318-05 GTIN: 4045761240445 Manufacturer: KERN Facts Nominal value: 20 mg Tolerance (OIML): ±0.01 mg OIML class: E2 Tariff number: 84239090 Special features Form: plate Material: polished stainless steel Origin: CN Recommendation: use a protective case; DAkkS calibration recommended; EG initial verification not available from 30.11.2025 FAQ What accuracy can be expected from this calibration weight? The KERN 318-05 is an OIML class E2 reference mass with a nominal value of 20 mg and a tolerance of ±0.01 mg, providing the precision required for microbalance checks and low-uncertainty calibration routines. Is the weight suitable for laboratory accreditation requirements? Yes. With a DAkkS calibration certificate, the KERN 318-05 fulfils traceability requirements commonly requested in ISO/IEC 17025 processes and supports objective evidence for audits. How should the weight be stored and handled to maintain accuracy? Store the weight in a dedicated protective case and handle with gloves or tweezers to avoid contamination; the polished stainless-steel surface reduces adhesion but careful handling prolongs calibration intervals. KERN — Origin: CN

Take advantage of the combination of OIML Class E2 accuracy, a nominal value of 50 mg, and a polished stainless steel disc form for dependable analytical-balance calibration; order directly via Metav Werkzeuge or consult our specialists for application support. KERN 318-06 Calibration weight — 50 mg polished stainless steel disc The KERN 318-06 is a milligram calibration weight in disc form, designed for high-precision verification of analytical balances and laboratory scales under OIML Class E2 requirements. OIML Class E2 precision Nominal value 50 mg Polished stainless steel disc form Tolerance 0.012 mg Precision that supports traceable measurement results The weight meets OIML Class E2 requirements, offering a stated tolerance of 0.012 mg, which provides the repeatability and stability necessary for routine verification of analytical balances. Class E2 indicates suitability for high-resolution instruments and laboratory environments where small deviations can affect test results; this ensures procedural confidence and helps maintain measurement traceability when used alongside an appropriate calibration regime. The measurable tolerance supports risk-based quality control and reduces uncertainty in documented results. Robust design for careful handling and longevity Manufactured from stainless steel with a polished finish and produced in a disc form, the unit minimises contamination and surface wear, which assists in preserving mass integrity over repeated use. The geometry simplifies centring on balance pans and reduces handling-induced errors, while the polished surface aids cleaning and inspection. These design choices translate into lower maintenance effort and a reliable service life, supporting uninterrupted workflows in labs and inspection rooms where handling and environmental control matter. Application guidance and compliance considerations For the highest-level accuracy, a protective case is recommended due to the fine 50 mg nominal value and tight tolerance; a case helps prevent abrasion and particle deposition that would alter mass. Note that initial EU type-approval (EG-Erstichung) for calibration weights will not be possible after 30 November 2025; therefore, a DAkkS calibration is recommended for traceable certification and routine conformity checks. The combination of Class E2 accuracy and DAkkS-recognised calibration supports internal quality management and external audits, making the weight suitable for laboratories, calibration services and quality-control departments. Contact Metav Werkzeuge in Emmerich for tailored advice, DAkkS calibration options or to arrange supply of the KERN 318-06 milligram weight directly from our warehouse via email or phone Technical data Article number: T318-A SKU: 318-06 GTIN: 4045761240452 Manufacturer: KERN Origin: CN Core specifications Nominal value: 50 mg Tolerance (OIML E2): 0.012 mg HS code: 84239090 Special features Polished stainless steel Disc form OIML Class E2 Recommended: protective case for handling Recommended: DAkkS calibration FAQ What is the declared tolerance of this calibration weight? The declared tolerance for the KERN 318-06 milligram weight (OIML Class E2) is 0.012 mg, suitable for high-resolution analytical balance checks. Is a calibration certificate included with the weight? A DAkkS calibration is recommended for the KERN 318-06; please request calibration options when ordering to receive a traceable certificate. Which instruments are appropriate for use with this weight? The disc-shaped 50 mg weight is intended for analytical balances and high-precision laboratory scales that require OIML Class E2 reference masses. Can the weight be used for legal-for-trade verification? After 30 November 2025, EG first verification is no longer available for calibration weights; the KERN 318-06 should be used with DAkkS calibration for conformity and traceability purposes. How should the weight be handled and stored to preserve accuracy? Handle the KERN 318-06 with tweezers or gloves and store it in a protective case to prevent surface contamination and mechanical wear that could change its mass. KERN — Origin: China. Contact: info@metav-werkzeuge.com | +49 2822 7131930

Benefit from high-precision measurement with the polished stainless-steel 100 mg disc in OIML class E2 and a tight ±0.016 mg tolerance for consistent results in laboratory and calibration workflows; order the KERN 318-07 directly via Metav Werkzeuge or consult our specialists if additional information is required. KERN 318-07 Milligram weight — OIML class E2, 100 mg polished stainless-steel disc The KERN 318-07 is a polished stainless-steel 100 mg calibration weight in OIML class E2, designed for precision balances and laboratory metrology. OIML class E2 accuracy Nominal value 100 mg Polished stainless-steel disc Tolerance ±0.016 mg Consistent measurement performance for repeatable results The disc is certified to OIML class E2, providing a measurement standard suitable for high-resolution balances where reproducibility matters. With a nominal value of 100 mg and a tolerance of ±0.016 mg, the component serves as a stable reference that reduces uncertainty during routine checks and comparative measurements. The specification supports traceable adjustment of analytical and precision balances, so laboratories and calibration stations can rely on consistent mass references for quality control and method validation. Robust finish and form that aid handling and longevity A polished stainless-steel construction combines corrosion resistance with a smooth surface that minimises contamination and handling marks. The disc shape makes centring on balance pans straightforward and supports even load distribution, which is important for reproducible results on small-capacity instruments. Recommended protective storage is advised for milligram weights because the sensitivity of the standard improves longevity; a suitable protective case preserves the reference surface and maintains calibration intervals, helping to avoid premature drift. Traceability and conformity aligned with professional calibration practice Given regulatory changes, EG initial verification for weights will not be available after 30 November 2025; for most applications the recommended route is a DAkkS calibration to maintain full traceability and documented uncertainty. A DAkkS certificate provides the documentary evidence required for accredited laboratories and quality management systems and supports audit requirements. Choosing a certified calibration and keeping a documented history builds traceability into measurement workflows and reduces operational risk for production control, R&D and testing environments. Contact Metav Werkzeuge in Emmerich for specialist advice on the KERN 318-07, recommendations for DAkkS calibration and guidance on a suitable protective case Technical data Article number: T318-A SKU: 318-07 GTIN: 4045761240469 Manufacturer: KERN Facts Nominal value: 100 mg Tolerance (OIML E2): ±0.016 mg Tariff code: 84239090 Origin: China Special features Material: Polished stainless steel Shape: Disc OIML class: E2 Form: Plättchenform FAQ What is the declared tolerance of this weight? The declared tolerance for the KERN 318-07 (milligram weight, OIML class E2) is ±0.016 mg, suitable for high-resolution balance checks. Is the KERN 318-07 suitable for calibration labs requiring traceability? Yes, the KERN 318-07 is intended as a reference weight for traceable procedures and the manufacturer recommends a DAkkS calibration to provide documented traceability. What material and shape does the weight have? The weight is a polished stainless-steel disc (Plättchenform), designed to minimise surface contamination and ensure consistent placement on balance pans. Are there special storage recommendations for milligram weights? Due to the sensitivity of milligram standards, a protective case is strongly advised to preserve the surface and extend calibration intervals; Metav recommends selecting a case from the available accessories. Can the KERN 318-07 be used for routine verification of analytical balances? Yes, the 100 mg E2 reference is suitable for routine checks and adjustments on precision and analytical balances where OIML E2 class weights meet the laboratory’s required uncertainty budget. Metav Werkzeuge GmbH, Emmerich am Rhein, Germany • info@metav-werkzeuge.com • +49 2822 7131930

Benefit from the combination of OIML E2 accuracy, a polished stainless-steel plate form and a tight 0.02 mg tolerance to secure reliable calibrations and consistent production results; order the milligram weight directly via Metav Werkzeuge or consult our specialists for calibration options. Milligram weight KERN 318-08 — OIML E2, 200 mg, polished stainless steel The Milligram weight KERN 318-08 is a polished stainless-steel calibration plate designed for precise mass verification on laboratory and analytical balances. OIML-class E2 accuracy Nominal mass 200 mg Polished stainless-steel plate Tolerance 0.02 mg Consistent accuracy for exacting calibration tasks The Milligram weight is specified to OIML E2 standards with a nominal mass of 200 mg and a narrow tolerance of 0.02 mg, providing a reproducible reference for high-resolution balances. Such classification ensures that uncertainty budgets are reduced when verifying analytical and precision balances, which translates into fewer retests and smoother quality control procedures. The compact reference mass supports routine calibration routines and spot checks in production and laboratory settings. Robust polished stainless-steel construction for longevity Manufactured from stainless steel and finished with a polished surface, the plate resists corrosion and surface contamination that could otherwise alter mass values. The polished finish simplifies cleaning and handling, helping to maintain measurement integrity over time. This durable design supports frequent use in industrial quality control and laboratory environments, reducing the need for premature replacement and lowering long-term operational interruptions. Traceability and calibration options for regulatory conformity The Milligram weight is supplied as a traceable calibration standard suitable for documented verification workflows. Note that the EU initial verification (EG-Erstbescheinigung) will no longer be available after 30 November 2025; for continued traceability it is recommended to obtain a DAkkS calibration, which meets the requirements of most applications and assures measurement traceability to national standards. Choosing a calibrated reference contributes to audit readiness and supports compliance with internal quality systems. Practical plate form and storage recommendations The plate form makes this milligram weight easy to position on balance pans while reducing the risk of tipping or uneven contact. For protection and to preserve accuracy, a protective case is strongly recommended; accessories and suitable etuis are available in the related accessories section. Careful handling, minimal contact with bare hands and storage in a clean case help to retain the certified mass value and extend the usable lifespan of the reference weight. Contact Metav Werkzeuge in Emmerich for calibration advice, DAkkS services and ordering support at info@metav-werkzeuge.com or by phone at +49 2822 7131930 Technical data Article number: 318-08 Manufacturer: KERN GTIN: 4045761240476 Material: Stainless steel OIML class: E2 Form: Plate Nominal mass: 200 mg Tolerance: 0.02 mg Country of origin: CN Commodity code: 84239090 Facts Nominal mass 200 mg Tolerance (OIML): 0.02 mg GTIN 4045761240476 Commodity code 84239090 Special features Polished stainless-steel plate OIML E2 classification Plate form for stable placement DAkkS calibration recommended Protective case (etui) advised FAQ What accuracy class does this calibration weight meet? The calibration weight conforms to OIML class E2, offering the precision required for high-resolution balance verification with a tolerance of 0.02 mg. Is a calibration certificate recommended for this weight? Yes, a DAkkS calibration is recommended for traceability and most applications, especially since EU initial verification will not be available after 30 November 2025. Can the weight be used directly on analytical balances? The 200 mg polished plate is designed for use on analytical and precision balances; care in placement and handling will preserve its certified value. What material is the weight made from and why does that matter? The weight is manufactured from stainless steel with a polished finish, which reduces surface contamination and corrosion risk, helping to maintain consistent mass values over time. Is a protective case necessary for storage and transport? A protective case (etui) is strongly advised to avoid contamination and mechanical damage; Metav Werkzeuge lists suitable accessories for secure storage. KERN — Country of origin: CN

Take advantage of the combination of laboratory-grade accuracy, polished stainless steel durability and traceable calibration options for consistent measurement results. Order the KERN calibration weight directly via Metav Werkzeuge or ask our consultants if needed. Milligram weight 318-09 — 500 mg polished stainless calibration disc (KERN) The Milligram weight 318-09 is a 500 mg OIML class E2 calibration disc designed for precision balances and laboratory verification. OIML class E2, tolerance 0.025 mg Nominal mass 500 mg in disc form Polished stainless steel construction Suitable for high-precision calibrations Consistent, traceable accuracy for critical balances The certified OIML class E2 specification ensures reproducible results when verifying high-resolution balances. With a nominal mass of 500 mg and a declared tolerance of 0.025 mg, the calibration disc provides a reliable reference point for routine verification and instrument validation. Laboratories and quality-controlled workshops benefit from stable comparative measurements, reduced measurement uncertainty and a clear basis for compliance with legal and internal quality requirements. The construction meets expectations for use in metrological workflows where small deviations are consequential. Robust material and compact form for everyday handling Manufactured from polished stainless steel, the disc shape delivers both resistance to corrosion and a surface that is easy to clean without affecting mass stability. The compact design minimises air disturbance during handling, which helps to reduce weighing variability on microbalances. Surface finish and material selection limit adsorption of contaminants, prolonging the interval between cleaning and recalibration. For practical use, the disc format combines safe storage with simple placement on balance pans and low thermal mass for faster temperature equilibrium. Calibration and storage recommendations to protect investment Given the regulatory landscape, a DAkkS calibration is recommended as the preferred traceable service; note that EC initial verification for calibration weights will no longer be possible from 30 November 2025. For high-accuracy classes such as E2, regular calibration and careful storage in a protective case preserve the declared tolerance. A suitable case is advised to prevent handling marks and particulate contamination; accessories are listed in the product’s accessory section. For specialised applications or additional technical specifications, consult the calibration laboratory or the supplier’s technical advisers. For DAkkS calibration or technical advice on the KERN 318-09 milligram calibration weight, contact Metav Werkzeuge at info@metav-werkzeuge.com or by phone +49 2822 7131930 to arrange supply from our Emmerich facility Technical data Article number: 318-09 Manufacturer: KERN GTIN: 4045761240483 Core specifications Nominal mass: 500 mg OIML class: E2 Tolerance (OIML): 0.025 mg Form: Disc (plated form) Materials & special features Material: Polished stainless steel Country of origin: CN Tariff code: 84239090 FAQ What calibration class does this weight comply with? The KERN 318-09 complies with OIML class E2, providing a tolerance of 0.025 mg suitable for high-precision balance checks. Is a protective case necessary for this calibration disc? A protective case is recommended to avoid surface contamination and handling marks; Metav Werkzeuge lists compatible cases in the accessories section for secure storage. Can this weight be used for routine balance verification in a laboratory? Yes. The 500 mg stainless steel disc is designed for routine verification and calibration of high-resolution balances and microbalances. What calibration services are advised for long-term traceability? A DAkkS calibration is recommended for traceable results and formal documentation, especially since EC initial verification of calibration weights will no longer be available after 30 November 2025. KERN — Country of origin: CN

Take advantage of the combination of robust aluminium protection, precise compatibility with calibration classes and a lightweight, compact design to keep standard weight sets organised and safe. Order the case directly via Metav Werkzeuge or ask our consultants for tailored advice. Aluminium-protected Case KERN 313-050-600 — protective case for standard weight sets, 1 mg–500 g The Aluminium-protected Case is a lightweight, rigid transport and storage solution designed for standard calibration weight sets in laboratory and workshop environments. Aluminium-protected construction Suitable for 1 mg–500 g weight sets Compatible with classes E1–M1 Knob/compact format for efficient storage Built for reliable calibration workflows and secure transport The case’s aluminium-protected outer shell delivers mechanical resilience without excessive mass, providing secure transport for sensitive calibration masses. Designed for 1 mg–500 g weight sets and compatible with E1–M1 accuracy classes, the etui secures individual pieces in a knob/compact layout that minimises movement during handling. This reduces the risk of damage and the need for recalibration, supporting continuous, predictable operation in metrology chains. Organised layout that speeds up daily routines A compact internal arrangement keeps weights separated and accessible, enabling faster selection and return to storage during quality control cycles. The knob/compact configuration simplifies identification and handling of small masses while preserving their surfaces and tolerances. For workshops and laboratories that prioritise efficiency, the structured interior contributes to a smoother workflow and fewer interruptions for searches or cleaning. Robust protection without compromising portability With a total mass of approximately 0.7 kg, the case balances robust protection with easy handling. The aluminium construction shields contents from external mechanical impacts and environmental strain during transport. The rigid shell also serves as a practical protective barrier in shared storage areas, reducing the likelihood of accidental knocks affecting highly accurate weight sets. Suitable for standardised metrology environments Intended for standard weight sets in the knob/compact form and for use with E1–M1 classes, the case supports conformity and traceability requirements common in calibration labs and regulated production environments. The design focuses on preserving the geometric and surface integrity of masses used for calibration, contributing to reliable measurement chains and fewer unplanned calibrations. Contact Metav Werkzeuge in Emmerich for detailed advice on integrating the KERN 313-050-600 aluminium-protected case into calibration routines or to request further technical specifications: info@metav-werkzeuge.com | +49 2822 7131930 | WhatsApp +49 170 2837271 Technical Data Article number: 313 SKU: 313-050-600 Manufacturer: KERN Material: aluminium Weight: 0.7 kg Suitable for: 1 mg–500 g Classes: E1–M1 GTIN: 4045761222786 Country of origin: CN Tariff code: 84239090 Facts Range: 1 mg–500 g Mass (case): 0.7 kg Accuracy classes supported: E1–M1 GTIN numeric identifier: 4045761222786 Special features Aluminium-protected outer shell Knob/compact internal layout for weight sets Designed for standard weight sets Compact, portable format Suitable for laboratory and workshop use FAQ What weight range does the case accommodate? The case is designed for weight sets from 1 mg–500 g, suitable for compact or knob-style masses. Which calibration classes are compatible with this case? The KERN aluminium-protected case supports E1–M1 classes, making it suitable for high-precision laboratory and calibration environments. What material is the case made from? The outer shell is aluminium, chosen for its combination of rigidity and low weight. How heavy is the empty case? The case weighs approximately 0.7 kg, offering protection while remaining portable. Is the case suitable for workshop transport? Yes; the robust aluminium construction and compact layout protect masses during routine transport within workshops and between lab benches. Manufacturer: KERN; Distributor: Metav Werkzeuge, Emmerich am Rhein; Contact: info@metav-werkzeuge.com | +49 2822 7131930 | WhatsApp +49 170 2837271

Take advantage of a lightweight, polyamide handling tool that ensures a secure grip on small calibration weights up to 200 g; its 100 mm length combines fine control with easy handling for routine calibration tasks. Order directly via Metav Werkzeuge or consult our specialists for matching accessories and delivery from Emmerich. KERN 315-242 Tweezer (Polyamide, 100 mm) KERN 315-242 is a precision plastic tweezer for secure handling of small calibration weights in laboratories and workshops Secure grip for small calibration weights Suitable for weights E1–M3, 1 mg–200 g 100 mm length for precise handling Polyamide construction, lightweight 10 g Precision handling reduces contamination and measurement error The compact design provides a controlled hold when placing and removing calibration masses, helping to preserve the integrity of sensitive components. Made from polyamide, the instrument is gentle on metallic and plated surfaces and reduces risk of scratching or marking. The compatibility with 1 mg–200 g weights across E1–M3 classes means the tool supports a wide range of calibration workflows, supplying consistent handling where repeatability matters. Built for routine use, the tweezer contributes to faster setup times and fewer handling-related deviations. Comfortable length and light weight for repetitive tasks At 100 mm, the geometry balances reach and tactile feedback to enable precise positioning without overextension of the hand. The construction results in a lightweight tool — approximately 10 g — that decreases operator fatigue during repeated handling. The slim tips facilitate access to small masses and narrow pans, while the overall form factor supports careful handling during calibration runs. Clear, repeatable manipulation of weights improves throughput and aids adherence to internal quality procedures. Durable, easy-care design for laboratory and workshop environments The choice of high-quality plastic provides a durable and easy to clean solution suitable for environments where metal tweezers could risk scratching or produce magnetic influence. Maintenance is straightforward: wipe clean and store in a dry place to maintain tip alignment and performance. The tool's simple construction minimises service requirements and offers a dependable adjunct to balances, scales and precision measuring equipment in both calibration laboratories and industrial workshops. Contact Metav Werkzeuge today for tailored advice and supply of the KERN 315-242 tweezer; our Emmerich-based team can confirm suitability for specific calibration setups and arrange prompt delivery via the central European warehouse (info@metav-werkzeuge.com | +49 2822 7131930 | WhatsApp +49 170 2837271) Technical data Article number: 315 SKU: 315-242 Manufacturer: KERN GTIN: 4045761003439 Material: Polyamide (plastic) Facts Length: 100 mm Weight: 0.01 kg Suitable weight range: 1 mg–200 g Special features Secure grip for small calibration weights Suitable for weight classes E1–M3 Lightweight construction for reduced operator fatigue Simple cleaning and low maintenance FAQ What weight range is compatible with these tweezers? The KERN 315-242 tweezer is suitable for handling calibration weights from 1 mg up to 200 g. Which weight classes can be handled safely with this tool? This tweezer supports weights across classes E1 to M3, making it appropriate for a broad range of calibration tasks. Is the material safe for delicate or plated masses? Yes, the polyamide construction of the KERN 315-242 is designed to be gentle on delicate and plated surfaces, helping to avoid scratches. How should the tweezer be maintained to ensure longevity? Routine care for the KERN 315-242 involves simple cleaning with a soft cloth and storage in a dry place to preserve tip alignment and performance. Can this tool be used in both laboratory and workshop environments? The lightweight, easy-care design of the KERN 315-242 makes it suitable for calibration benches in laboratories as well as workshop settings where precise handling is required. Metav Werkzeuge, Emmerich am Rhein, Germany — Email: info@metav-werkzeuge.com — Tel: +49 2822 7131930 — WhatsApp: +49 170 2837271

Take advantage of a simple, reliable accessory that keeps calibration masses free from dust while preserving accuracy and prolonging service life. The combination of gentle bristles, low weight and practical handling ensures efficient routine maintenance of scales and weights. Order the KERN brush directly via Metav Werkzeuge or consult our advisors for further details. KERN 318-270 Dust Brush — compact brush for gentle cleaning of calibration weights The KERN 318-270 dust brush is a lightweight accessory designed to remove dust and particles from calibration weights and weighing surfaces in laboratories and workshops. Soft bristles for gentle cleaning Designed for calibration weights Lightweight and easy to handle Preserve measurement accuracy with gentle, targeted cleaning Regular cleaning of calibration masses prevents contamination that can alter mass values and affect the repeatability of results. The compact brush offers gentle bristles that remove dust without abrading surfaces or leaving residues, helping to maintain the precision of weights used in verification and calibration. For technicians and workshop teams, this reduces the frequency of recalibration and supports consistent measurement quality across production and quality-assurance processes. Practical handling for routine maintenance and quick interventions The accessory is intentionally lightweight and easy to manoeuvre during daily maintenance tasks, enabling swift removal of particles from weight stacks and pans without disassembly. Ergonomic handling minimises the risk of accidental knocks or slips near sensitive balances, while the brush design supports access to small grooves and recessed areas. This results in faster cleaning cycles and less downtime, contributing to a more efficient workflow in busy metrology environments. Reliability in supply and fit for professional environments The brush is supplied by a recognised manufacturer for weighing technology and suits workshops, service departments and calibration laboratories that require straightforward maintenance tools. Paired with Metav Werkzeuge’s role as a dependable distributor, this accessory supports a transparent supply chain and practical on-bench readiness. Investing in simple, purpose-built maintenance tools safeguards the performance of weighing equipment and complements broader quality-management measures. Contact Metav Werkzeuge to procure the KERN 318-270 dust brush for dependable maintenance of calibration weights or to request additional technical information Technical data Article number: 318 SKU: 318-270 Manufacturer: KERN GTIN: 4045761004146 Facts Weight: 0.01 kg Eclass: 21041109 Special features Suitable for cleaning calibration weights Rapid dispatch available via distributor FAQ How does this brush protect calibration accuracy? The brush removes dust and particles that can adhere to masses; using the KERN 318-270 dust brush helps maintain the declared mass values and stable measurement results. Is the brush suitable for all types of laboratory weights? The brush is intended for routine cleaning of calibration weights and standard weighing pans; compatibility with specialised mass geometries should be assessed case by case. Can the brush be used on balance pans without causing damage? Yes, the soft bristles are designed for gentle cleaning and avoid abrasive contact that could harm pans or plated surfaces. Manufacturer: KERN — Address: not specified — Contact: not specified