78mm Setting Ring Form C Hardened Gauge Steel DIN 2250, JS3 - Metav IndustryLine

Take advantage of a compact gauge that combines DIN-conform tolerance, hardened and lapped gauge steel construction and a stable Form C geometry for repeatable setting operations; procure the component directly via Metav Werkzeuge or consult the technical team for specification matching.

Setting Ring 78 mm (DIN 2250) — Hardened, Lapped Gauge Steel — Metav IndustryLine

The Setting Ring 78 mm is a precision ring gauge designed to set and verify dimensional measuring instruments and plug gauges where a robust, standards-compliant reference is required.

• Hardened, lapped gauge steel
• DIN 2250/DIN 286, JS 3 tolerance
• Precision diameter 78 mm
• Form C geometry for stable seating

Stable reference for repeatable setup and inspection

A compact, standards-oriented ring gauge provides a reliable datum for calibration benches and workshop checks. The reference is manufactured from hardened and lapped gauge steel, which reduces surface wear and preserves the reference diameter over extended use. Compliance with DIN 2250 and DIN 286 combined with the JS 3 tolerance class ensures that the ring serves as a verifiable master for setting plug gauges, bore gauges and comparators. By offering an unambiguous, machine-readable standard, the instrument supports consistent measurement chains and reduces downstream rework.

Material and finishing that sustain accuracy

The choice of gauge steel and a final lapping operation deliver a contact surface with low roughness and minimal run-out, which is crucial when repeatability is a priority. A Form C profile offers a stable seating form that minimises rocking during contact, translating into fewer measurement artefacts when instruments are set against the ring. The material and geometry together slow dimensional drift and limit surface degradation, which lowers the frequency of recalibration cycles and maintains process capability for longer production runs.

Practical workshop integration and efficiency benefits

This ring gauge is easy to integrate into shop-floor routines: its compact diameter and robust build permit secure clamping or mounting on inspection fixtures, while the clear nominal dimension simplifies inventory handling. Using a calibrated reference minimises setup times on gauges and reduces uncertainty in first-article inspections; the result is a faster throughput from measurement to production decision. The component has a small footprint and durable finish, so it suits both dedicated metrology benches and routine quality-control stations where a reliable reference is required.

Discuss procurement and application details with Metav Werkzeuge to ensure the Setting Ring 78 mm meets the inspection requirements and integration needs of the production environment

Technical Data

• Article number: M313.078
• GTIN: 4054469120942
• EClass: 21170104
• Customs tariff number: 90173000

Facts

• Diameter: 78 mm
• Form: C
• Tolerance class: JS 3
• Standards: DIN 2250, DIN 286

Materials / Special features

• Material: gauge steel, hardened and lapped
• Finish: lapped measuring faces
• Category: setting gauge / ring gauge

FAQ

What is the primary use of this setting ring?
The Setting Ring 78 mm is intended as a calibration and reference standard for setting plug gauges, bore gauges and comparator masters in inspection and workshop environments.

Which standards and tolerance class apply to the ring?
The ring is manufactured to DIN 2250 and DIN 286 with a JS 3 tolerance, providing a clear conformity baseline for inspection tasks.

How does the material choice affect longevity?
Construction from hardened, lapped gauge steel reduces wear and surface degradation, preserving the nominal diameter for extended service life.

Is the ring suitable for routine shop-floor use?
Yes — the Form C geometry and robust finish make the ring well suited to both metrology benches and regular workshop setting operations.

Can this ring be used as a master for comparator checks?
The Setting Ring 78 mm is suitable as a master reference for comparator and gauge-setting sequences, owing to its standards conformity and stable surface finish.

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