4 mm Gauge Block Ring Hardened Test Ring DIN 2250, JS3 Special Steel - Metav IndustryLine

Take advantage of the combination of a DIN 2250 reference, JS3 tolerance and hardened gauge steel for reliable, repeatable inspection results; order this precision ring directly via Metav Werkzeuge or consult the specialists for application advice.

Setting ring 4 mm (DIN 2250) — hardened gauge steel, tolerance JS3 — Metav IndustryLine

A setting ring 4 mm designed as a compact reference standard for tight-fit inspections and calibration tasks in inspection benches and metrology labs

• Hardened gauge steel to DIN 2250
• Tolerance class JS3 for reproducible fits
• Compact 4 mm nominal diameter for tight checks
• Supplied by Metav IndustryLine with SKU M313.004

Assured fit and repeatability for small-diameter checks

The setting ring serves as a small but decisive reference for internal-diameter checks and for setting verification tools. Manufactured to DIN 2250, the component offers a defined geometry that enables reproducible GO/NO‑GO assessments and setting of inside-measuring instruments. With the JS3 tolerance class specified, the ring provides the stability required for repeat measurements and minimises uncertainty in acceptance testing. Using a standardised ring as a reference reduces rework and streamlines inspection steps in assembly and quality control processes.

Robust material and durability that protect accuracy

Made from special steel and delivered in a hardened gauge steel finish, the ring is built to withstand repeated contact without significant wear, maintaining dimensional integrity over long service intervals. The hardened surface reduces susceptibility to surface damage from contact with gauges or mating parts, which helps preserve the original tolerance class. For workshops and small metrology labs, this combination of material and treatment translates into lower replacement frequency and steadier measurement baselines over time.

Simple integration into measuring workflows

The compact 4 mm nominal diameter and lightweight design make the ring straightforward to handle and store within existing inspection sets. As a small-format reference, it is particularly suitable where space is limited but accuracy is essential, for example in medical component inspection, micro‑part assembly, or fine mechanical workshops. The ring functions as an objective datum for setting internal micrometres, bore gauges and verification fixtures, contributing directly to faster setup times and consistent inspection outcomes.

Traceability and product identity for procurement

The item is delivered with clear identification and traceable product data to support inventory and quality records. The GTIN 4054469120416 and Metav IndustryLine SKU provide unambiguous reference for ordering and documentation, easing stock management and audit trails in regulated production environments. Where traceability is part of the quality system, the ring’s standard conformity and stable geometry assist in maintaining the required documentation and inspection protocols.

For precise fit verification and reliable small‑bore references, contact Metav Werkzeuge in Emmerich for application guidance and procurement: phone +49 2822 7131930 or e‑mail info@metav-werkzeuge.com — ask for details on delivery and compatibility with existing gauge sets

Technical Data

• Article number: M313.004
• GTIN: 4054469120416
• Tariff code: 90173000
• Weight: 0.01 kg

Facts

• Nominal diameter: 4 mm
• Tolerance class: JS3
• Standard: DIN 2250

Special features

• Material: special steel
• Hardened gauge steel finish
• Category: End gauges (Endmasse)
• Brand: Metav IndustryLine

FAQ

What is the primary use of this setting ring?
The setting ring 4 mm is intended as a small‑diameter reference for internal‑diameter verification, setting bore gauges and performing GO/NO‑GO fit checks in inspection and calibration workflows.

Which tolerance and standard apply to this ring?
This ring is manufactured to DIN 2250 with a JS3 tolerance class, offering reproducible fits suitable for routine inspection and acceptance testing.

Is the ring durable enough for frequent use in a workshop?
Yes — the ring is made from special steel with a hardened gauge steel finish, which ensures resistance to wear and preserves dimensional stability under repeated handling.

How is the product identified for ordering and documentation?
The item is listed as SKU M313.004 with GTIN 4054469120416, enabling clear procurement, inventory control and traceability in quality records.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com