Mitutoyo 177-287 Ring Gage 0.8 Inch Diameter Master Calibration Standard

The Mitutoyo 177-287 is a precision ring gage with a 0.8 inch (20.32mm) nominal diameter, designed for calibration and setting of internal measurement instruments. This master calibration standard provides a reliable reference diameter for verifying the accuracy of your measuring tools.

Key Features:

• Precision ground and lapped to exact 0.8 inch diameter specification
• Ideal for setting and calibrating dial bore gages, Holtest internal micrometers, and inside micrometers
• Hardened steel construction for long-term dimensional stability
• Master gage accuracy ensures reliable instrument calibration
• Traceable calibration standard for quality control applications

Ring gages are essential tools in precision measurement environments, providing a known reference diameter to verify that bore measurement instruments are reading accurately before taking critical measurements. This gage allows quick setup and verification of internal measuring tools, reducing measurement uncertainty and ensuring quality control standards are maintained.