500 g Calibration Weight Knob Form OIML Class M3 Stainless Steel Turned, 250 mg Tolerance - 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

Data inconsistency detected for SKU 337-090-200: the calibration class is listed as "F2–M3" in one data entry and as "F2 + M1" in another. This discrepancy may lead to confusion or errors in classification, usage, or publication. It is essential to verify the correct calibration class to ensure accuracy and consistency across all records. Please review the relevant documentation, cross-check the entries, and confirm the appropriate classification. Resolving this issue promptly will help maintain data integrity and prevent potential miscommunication or operational issues. Ensure the verified calibration class is updated in all systems and records before further use or publication.

Take advantage of compact, durable storage and clear class compatibility to protect calibration weights and streamline handling. Order the case directly via Metav Werkzeuge or ask our consultants if further technical information is required. KERN Plastic weight case – protective case for single calibration weights (button/compact design) KERN Plastic weight case is a protective storage solution designed for single calibration weights in workshops and calibration labs Durable plastic protective case Designed for button/compact single weights Suitable for classes F1–M3 Compact, lightweight storage solution Secure storage that preserves calibration integrity The plastic construction provides reliable protection against dust, scratches and incidental knocks, helping to maintain mass accuracy over time. The internal shape is optimised for single weights in a button or compact design, giving a snug fit that minimises movement during transport and handling. For calibration environments where repeatable results matter, this storage solution reduces the risk of contamination and mechanical wear, supporting consistent measurement performance. Compatibility that simplifies inventory and routine checks Designed specifically for single calibration weights, the case supports nominal 500 g weights and is rated for legal calibration classes F1–M3, making it suitable for a wide range of verification tasks in both workshops and small laboratories. The clear class compatibility streamlines inventory management and audit preparation, as stored weights remain grouped and identifiable by class. This compatibility reduces handling time during routine checks and helps maintain traceability in quality-controlled workflows. Lightweight handling for everyday workshop use Weighing just 0.02 kg, the case is intentionally lightweight while remaining robust enough for daily use. The compact footprint eases storage on workbenches and in transport boxes, while the resilient material stands up to frequent opening and closing. Technicians benefit from quicker handling and reduced manual strain, and the practical design supports organised toolrooms where space and efficiency are priorities. Secure precision storage with the KERN case—contact Metav Werkzeuge in Emmerich for tailored advice and reliable supply at info@metav-werkzeuge.com or call +49 2822 7131930 Technical data Article number: 347-090-400 Manufacturer: KERN GTIN: 4045761008793 Country of origin: DE Facts Nominal weight: 500 g Accuracy classes: F1–M3 Weight: 0.02 kg Special features Material: Plastic Application: Case for single weights Design: Button / compact form FAQ What is the primary purpose of this case? The case is intended for secure storage and transport of single calibration weights; the KERN plastic weight case keeps individual weights protected and organised. Which weight sizes fit this case? This case is specified for nominal 500 g single weights and is designed to accommodate button/compact forms used in calibration routines. Is the case suitable for calibration classes F1–M3? Yes, the KERN plastic weight case is suitable for weights in accuracy classes F1–M3, supporting workshop and laboratory requirements. What material is the case made from and how durable is it? Made from robust plastic, the case offers durable protection against dust and mechanical wear while remaining lightweight for easy handling. How is the product identified for ordering or inventory? Use the article number 347-090-400 or GTIN 4045761008793 to identify the KERN plastic weight case for procurement and stock records. Metav Werkzeuge, Emmerich am Rhein, Germany — info@metav-werkzeuge.com — +49 2822 7131930

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

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