Mitutoyo 177-297 Ring Gage 4 Inch Diameter Calibration Standard

The Mitutoyo 177-297 is a precision 4-inch diameter ring gage designed for accurate calibration and setting of internal measurement instruments. This master setting standard ensures your bore gages, Holtest internal micrometers, and inside micrometers maintain proper accuracy for critical dimensional inspections.

Key Features:

• 4-inch nominal diameter precision ground ring gage
• Used for quick and accurate setting of dial bore gages
• Ideal for calibrating Holtest internal micrometers
• Essential for setting inside micrometers to known standards
• Manufactured to strict Mitutoyo quality standards
• Hardened and stabilized for long-term dimensional stability

Ring gages are essential tools in any precision measurement environment where internal diameter measurements must be verified. By using this calibration standard, you can ensure your measuring instruments provide consistent, accurate readings over time. The hardened construction provides excellent wear resistance for years of reliable service.