145mm Setting Ring, Hardened Gauge Steel, Form C, DIN 2250/DIN 286 JS3 - Metav IndustryLine

Take advantage of the combination of hardened, lapped gauge steel, DIN 2250 compliance and a stable 145 mm diameter for fast, repeatable set-ups and reliable inspection results. Order the setting ring directly via Metav Werkzeuge or contact our consultants for application advice.

Setting ring M313.145 — 145 mm gauge ring, hardened lapped gauge steel (DIN 2250)

The Setting ring M313.145 is a precision gauge ring for setting and verifying internal diameters in inspection and toolroom environments, designed to the DIN 2250 standard.

• Hardened, lapped gauge-steel construction
• Conforms to DIN 2250 and DIN 286, JS 3
• Accurate 145 mm diameter for repeatable setups
• Robust 4.75 kg mass for stable fixturing

Stable reference for repeatable setups

A hardened and lapped gauge-steel ring provides a dimensionally stable reference that reduces variability during routine set-ups. The 145 mm nominal diameter, produced to DIN 2250 tolerances, enables precise fixture adjustment and tool presetting with minimal trial adjustments. Using a standard-compliant reference part means fewer rechecks and less machine downtime, helping maintain a predictable production flow.

Conformance that simplifies inspection workflows

Built to both DIN 2250 and DIN 286 with JS 3 tolerance class, the ring suits quality control processes where documented standards are mandatory. The standardised tolerance and traceable dimension allow calibration chains and inspection protocols to be implemented consistently. This reduces the administrative effort in quality records while ensuring measurable conformance during audits.

Mass and form for functional stability

At 4.75 kg, the ring offers sufficient mass to remain steady during handling and when placed in fixtures, which translates into fewer measurement artefacts from movement. The listed Form C configuration supports common workshop use and easy seating in mandrels or bore gauges. The combination of mass and finishing treatment (lapped surface) directly improves contact quality with measuring instruments, yielding more reproducible readings.

Material and surface finish for longevity

Manufactured from hardened gauge steel and finished by lapping, the component resists wear and preserves the critical diameter across repeated use. The lapped finish reduces surface friction and seating irregularities, extending the service life of both the ring and the mating gauges. For environments requiring robust reference tools, this construction minimises long‑term maintenance and replacement frequency.

For specific application advice or to secure supply of the Metav IndustryLine setting ring M313.145, please contact Metav Werkzeuge in Emmerich by phone or email for prompt, expert assistance.

Technical data

• Article number: M313.145
• GTIN: 4054469121147
• Tariff number: 90173000
• Category: Lehren

Facts

• Diameter: 145 mm
• Weight: 4.75 kg
• Tolerance class: JS 3
• Standards: DIN 2250; DIN 286

Special features

• Material: gauge steel, hardened and lapped
• Design: Form C
• Application: reference ring for internal-diameter setting and verification

FAQ

Is the ring suitable for use as a master for internal-diameter setting?
Yes. The setting ring M313.145 (Metav IndustryLine) is designed as a reference for setting and verifying internal diameters and complies with DIN 2250 tolerances.

What does the lapped finish mean for daily use?
A lapped surface improves contact consistency and reduces wear; for the Metav IndustryLine setting ring, this helps sustain accurate seating and repeatable measurements over time.

Which tolerance class does the ring meet and what does that imply?
The ring is supplied to JS 3 tolerance, meaning it provides a tight, standardised fit for repeatable inspection and presetting tasks in toolroom and inspection settings.

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