10 g Test Weight Knob Stainless Steel Fine-Turned OIML Class F2, 0.6 mg Tolerance - KERN

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 the combination of secure storage, compact handling and class‑compliant organisation to protect calibration weights and simplify workflow; order the case directly via Metav Werkzeuge or consult our advisors for specification support. KERN Plastic Case for Single Weights 347-050-400 — for 10 g–20 g weights, classes F1–M3 The KERN Plastic Case for Single Weights 347-050-400 offers organised, transport‑ready storage for single calibration weights used in workshops and laboratories. Plastic case for single calibration weights Fits button/compact weight designs Compatible with weight classes F1 to M3 Protect measurement integrity with compact, secure storage The KERN Plastic Case is engineered to safeguard single calibration weights during storage and light transport. The plastic construction combines low weight with dimensional stability, reducing the risk of accidental scratches or contamination that can affect mass values. By keeping individual weights in a dedicated compartment, the case helps maintain measurement accuracy and continuity in calibration routines, supporting efficient quality control and repeatable weighing processes. Lightweight organisation that saves space and handling time A slim, lightweight enclosure simplifies handling on the workbench and in the calibration lab. At approximately 0.02 kg, the case adds negligible mass while offering clear separation for button/compact weight geometries, which minimises handling time and reduces the chance of cross‑contamination between masses. The compact design aids storage density and enables quicker inventory checks, contributing to streamlined workflow and consistent measurement results. Clear compatibility with calibration classes and nominal values Designed for nominal values in the 10 g–20 g range and certified weight classes F1–M3, the case supports commonly used small reference weights in laboratories and service centres. The case accommodates the typical form factors of single weights, ensuring that calibration artefacts remain correctly seated and identifiable. For users less familiar with class designations: F1–M3 indicate graded tolerances; choosing a case that matches those classes helps preserve the reference condition required for traceable weighing procedures. Contact Metav Werkzeuge in Emmerich for tailored advice on KERN calibration accessories and compatible storage options — email info@metav-werkzeuge.com or call +49 2822 7131930 Technical data SKU: 347-050-400 Manufacturer: KERN GTIN: 4045761008694 Country of origin: DE ECLASS: 21100103 Facts Nominal values: 10 g–20 g Weight classes: F1–M3 Net weight: 0.02 kg Tariff code: 84239090 Special features Material: Plastic For single weights (button / compact) Product group: Plastic cases for calibration weights FAQ Which nominal weights fit this case? The plastic case accommodates single calibration weights with nominal values in the 10 g–20 g range, matching the intended size and seating for those masses. Which weight classes are compatible with the case? This case is suitable for weights of classes F1 to M3; it is designed to hold items that meet those tolerance grades without compromising identification or storage. Is the case suitable for button or compact weight shapes? Yes — the internal layout is compatible with button/compact geometries, ensuring secure positioning and easy retrieval of individual weights. What material is the case made from and how is it maintained? The case is made from plastic; it is lightweight and can be wiped clean with a soft, lint‑free cloth and a mild cleaning agent to remove dust and residues. Metav Werkzeuge, Emmerich am Rhein, Germany — info@metav-werkzeuge.com — +49 2822 7131930

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

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

Take advantage of the durable wooden construction, precise fit for single calibration weights and compact transportability to keep lab weights organised and ready for use; order the wooden weight case directly via Metav Werkzeuge or consult our specialists for further specification support. Wooden Weight Case 337-040-200 by KERN — unpadded storage for single weights Wooden Weight Case 337-040-200 is a compact wooden case designed for storing and transporting single calibration weights in laboratory and workshop environments Wooden case for single 10 g weights Fits KERN 337/347/357/367 models Unpadded interior for secure storage Lightweight construction, easy to carry Reliable storage for precision weights The Wooden Weight Case provides a straightforward storage solution for precision weights, especially single-piece calibration weights in button or compact form. Manufactured from solid wood material, the case keeps individual weights organised and accessible while avoiding unnecessary bulk. The internal layout is tailored to accept standard single weights used in routine calibration tasks, supporting weights of 10 g and accuracy classes F2–M3, which helps maintain traceability and handling consistency in test procedures. Compact design that supports workshop workflows A compact footprint and lightweight construction make this case suitable for small benches and mobile calibration kits. The design prioritises easy handling and transport; at approximately 0.12 kg, the enclosure adds negligible load to a technician's toolkit while protecting items from scratches during storage. Compatibility with KERN weight series 337, 347, 357 and 367 ensures that the case integrates smoothly into existing equipment fleets, reducing the need for custom storage solutions and simplifying inventory management. Practical features for everyday metrology use The case comes unpadded, which reduces internal volume and makes insertion and removal straightforward for frequent use within calibration cycles. An unpadded interior also suits environments where weights are transferred frequently between instruments and short-term storage is required. The product supports efficient organisation, minimises handling errors and, by providing a dedicated place for each single weight, contributes to consistent measurement routines and prolongs the service life of sensitive calibration masses. Secure reliable storage for KERN single weights — order via Metav Werkzeuge or contact the team at info@metav-werkzeuge.com / +49 2822 7131930 for tailored advice Technical data Article number: 337 SKU: 337-040-200 GTIN: 4045761006355 Manufacturer: KERN Country of origin: DE Facts Weight: 0.12 kg Intended weight: 10 g Accuracy class: F2–M3 Commodity code: 84239090 eClass: 21100103 Special features Material: Wood Interior: Unpadded Fits single weights KERN 337, 347, 357, 367 Product group: Wooden case for single calibration weights FAQ Is this case suitable for 10 g single calibration weights? Yes. The Wooden Weight Case 337-040-200 is designed specifically to accommodate single 10 g calibration weights and is suitable for handling within accuracy classes F2–M3. Which KERN weight models fit this case? The case fits KERN single weights from the 337, 347, 357 and 367 series, providing a consistent storage solution across these compact/button-type models. Does the case have a padded interior to protect weights? No. The interior is unpadded, which reduces bulk and streamlines handling; however, care during transport is advised to avoid mechanical shocks. Is the case suitable for routine workshop transport? Yes. The wooden construction and lightweight overall mass make it practical for bench-to-bench transport and for inclusion in mobile calibration kits. Can this case support formal calibration routines and traceability? The case supports organisational and handling practices that aid traceability for single calibration weights in classes F2–M3, helping maintain consistent procedures during calibration work. KERN, Germany