Mitutoyo 177-295 Ring Gage 3.2 Inch Bore Calibration Standard

The Mitutoyo 177-295 is a precision ring gage with a 3.2-inch nominal bore diameter, designed for accurate calibration and setting of internal measurement instruments. This master ring gage serves as a reliable reference standard in quality control and inspection applications.

Key Features:

• 3.2-inch nominal bore diameter for precise calibration reference
• Used for quick and accurate setting of dial bore gages, Holtest internal micrometers, and inside micrometers
• Precision ground and lapped to tight tolerances for measurement accuracy
• Hardened steel construction ensures long-term dimensional stability
• Provides traceable calibration standard for internal measurement tools

Ring gages are essential tools for zeroing and verifying the accuracy of bore measuring instruments. The Mitutoyo 177-295 allows technicians to quickly set up their measuring tools to a known dimension before taking production measurements, ensuring consistent and reliable results.