Mitutoyo 177-301 Setting Ring 6 Inch Bore Gage Calibration Standard

The Mitutoyo 177-301 is a precision 6-inch setting ring designed for accurate calibration and setup of measuring instruments. This hardened steel ring serves as a master reference standard for bore measurement tools.

Key Features:

• Precision ground to exact 6-inch diameter for accurate instrument calibration
• Used for quick and accurate setting of dial bore gages, Holtest internal micrometers, and inside micrometers
• Hardened and stabilized steel construction ensures dimensional stability
• Lapped finish provides superior accuracy and long service life
• Includes calibration certificate with traceable measurements

Setting rings are essential tools for quality control and inspection departments, allowing technicians to verify and calibrate bore measurement instruments before use. The precision manufacturing ensures reliable, repeatable measurements for critical dimensional inspection work.