55mm Setting Ring Form C, Hardened Gauge Steel, DIN 2250/DIN 286 JS3 - Metav IndustryLine

Take advantage of a compact, standard‑compliant reference that combines hardened and lapped gauge steel with the interchangeability of DIN 2250 / DIN 286; the 55 mm nominal size provides a stable master for setting internal measuring instruments. Order the setting ring directly via Metav Werkzeuge or consult our specialists for application advice.

M313.055 Setting ring — 55 mm gauge ring, hardened and lapped (Metav IndustryLine)

The M313.055 setting ring is a precision gauge ring for setting and verifying internal diameters in inspection and workshop environments, manufactured to DIN 2250 and DIN 286 with tolerance class JS 3.

• Setting ring Form C, nominal 55 mm
• Hardened and lapped gauge steel
• DIN 2250 / DIN 286, tolerance JS 3
• For accurate setting and verification of bores

Precision where reproducible references matter

A compact reference of 55 mm nominal diameter, the M313.055 functions as a reliable master for internal gauge setting. Manufactured from hardened and lapped gauge steel, the ring offers a wear‑resistant contact surface that reduces local deformation and surface irregularities. Lapping yields a fine finish that helps stabilise the contact geometry between ring and probe, which in turn keeps measurement scatter low during repetitive setting tasks. The result is a practical reference that supports consistent adjustment of bore gauges, plug gauges and similar internal measuring tools.

Standards that simplify quality processes

Compliance with DIN 2250 and DIN 286 and the specified tolerance JS 3 ensures interchangeability across tools and fixtures. The JS 3 tolerance band denotes a closely controlled nominal fit for gauging purposes, which makes the ring suitable as a master for routine inspection and setup work. Using a standardised reference reduces the administrative effort of documenting gauge chains and facilitates traceable comparisons in quality control routines. These attributes contribute directly to reduced rework and clearer pass/fail criteria on production batches.

Durable design for everyday metrology work

Designed for workshop durability, the setting ring withstands frequent handling and repeated seating of probes without rapid wear, thanks to its hardened substrate and lapped finishing. Typical applications include setting internal micrometers, adjusting bore gauges and verifying dimensional fixtures in mechanical engineering and toolmaking. Handling recommendations: avoid sharp impacts, store the ring in a dry, dust‑free environment and protect the measuring surface from oils or abrasives. Combined with Metav IndustryLine’s quality screening, this ring is intended to deliver repeatable results for calibration benches and shop floor checks alike.

For precise gauge setting, specify Metav IndustryLine setting rings via Metav Werkzeuge in Emmerich — technical consultants are available to advise on integration into inspection routines

Technical data

• Article number: M313.055
• GTIN: 4054469120850
• Material: Gauge steel, hardened and lapped
• Form: Form C
• Nominal diameter: 55 mm

Facts

• eClass: 21170104
• Tariff number: 90173000
• Standards: DIN 2250; DIN 286; JS 3

Special features

• Application: Setting and verification of internal diameters
• Category: Gauge pins; Gauges
• Feature: Precision lapped contact surface

FAQ

What is the primary use of this setting ring?
The M313.055 setting ring from Metav IndustryLine is designed as a precision reference for setting and verifying internal measuring instruments such as bore gauges and plug gauges.

What does Form C indicate for this ring?
Form C describes the geometric finish and intended seating style of the ring; Form C rings offer a standard internal form suitable for practical setting tasks with typical shop probes.

What tolerance level does JS 3 represent?
JS 3 signifies a narrow tolerance band around the nominal diameter intended for gauging use; the designation on the M313.055 confirms suitability as a repeatable master in quality control processes.

Which measuring tools can be set with the 55 mm ring?
Typical instruments include internal micrometers, dial bore gauges, and plug gauges—any probe or device requiring a stable 55 mm internal reference benefits from the M313.055 gauge ring.

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