Mahr 355 E Setting Ring DIN 2250 C – 190–195 mm

An internal gauge is only as good as the ring you zero it on near 190–195 mm. The Mahr 355 E is that master — a hardened-steel setting ring made to DIN 2250 form C, with a precision-lapped bore that brings bore gages, air plugs and inside mics to nominal size.

A Mahr 355 E master setting ring, 190–195 mm

Key features & specifications

• Nominal diameter range: >190 to <195 mm (made to the ordered size)
• Master setting ring to DIN 2250 form C
• Hardened steel, precision-lapped bore
• Masters internal measuring instruments — bore gages, air plugs, inside micrometers
• Serves as a roundness and diameter reference
• Mahr article no. 4732633