28mm Setting Ring Form C, Hardened Gauge Steel, DIN 2250/DIN 286 JS3 - Metav IndustryLine

Take advantage of a compact 28 mm setting ring that conforms to DIN 2250 and DIN 286 with a JS 3 tolerance; the hardened and lapped gauge steel construction ensures repeatable reference values for workshop calibration tasks. Order directly via Metav Werkzeuge or consult our specialists for application advice.

Setting ring 28 mm — hardened gauge-steel reference (Form C)

The 28 mm setting ring serves as a stable master for setting and checking internal-measurement tools in workshop and inspection environments, designed for use where a compact, traceable reference is required.

• Ring gauge, DIN 2250, JS 3 tolerance
• Hardened and lapped gauge steel
• Form C seating for standard fixtures
• Diameter 28 mm for compact reference

Reference-grade accuracy for reliable setups

The ring provides a defined reference that supports consistent setting of internal gauges and comparative instruments. Manufactured to DIN 2250 and DIN 286 and delivered within the JS 3 tolerance band, this component functions as a stable reference that reduces setup variation and speeds recurring measurement tasks. The normative conformity provides measurable evidence for quality processes and simplifies documentation in production and inspection routines.

Durable construction for long-term repeatability

Made from hardened and lapped gauge steel, the ring is finished to resist wear while presenting a true seating surface for tools and fixtures. The Form C geometry assists with consistent locating in common gauge fixtures, which in turn helps to maintain repeatable contact conditions and reduces influence from operator handling. The metallurgical finish and lapping process lower the risk of localised scoring and preserve the master dimension over many cycles, meaning fewer replacements and more stable control limits in the long term.

Practical integration and traceability in the workshop

Small and compact, this 28 mm reference element fits neatly into standard calibre setups and bench fixtures where space is limited. The article is listed under SKU M313.028 and identified by GTIN 4054469120669, supporting traceable supply-chain documentation and inventory control. As a compact master, it is particularly suited to calibration benches and assembly stations that require quick, repeatable setting of bore gauges and internal comparators, helping to shorten machine downtimes and streamline inspection sequences.

For dependable master references choose the Metav IndustryLine setting ring — contact Metav Werkzeuge for ordering and application guidance from the Emmerich quality team.

Technical Data

• Article number: M313.028
• GTIN: 4054469120669
• eClass: 21170104
• Tariff number: 90173000

Facts

• Diameter: 28 mm
• Tolerance class: JS 3
• Standards: DIN 2250, DIN 286

Special features

• Material: hardened and lapped gauge steel
• Design: Form C
• Category: Lehren / setting gauges

FAQ

What tolerance can be expected from this setting ring?
The Metav IndustryLine setting ring M313.028 is manufactured to JS 3 tolerance in accordance with DIN 2250, offering a standardised fit for reference applications.

Which material is the ring made from and why does it matter?
The ring is made from hardened and lapped gauge steel, which provides wear resistance and a stable seating surface, ensuring long-term repeatability for master-reference uses.

Can the ring be used to set internal bore gauges and comparators?
Yes; the 28 mm ring gauge is intended as a compact reference for setting internal-measurement tools such as bore gauges and internal comparators.

What does Form C indicate for this product?
Form C refers to the seating and shoulder geometry, which is compatible with common fixture designs and supports reproducible locating during repeated set-ups.

How is the product identified for traceability and inventory?
This setting ring is sold as SKU M313.028 and carries GTIN 4054469120669 for supply-chain traceability.

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