Mitutoyo 177-187 Setting Ring Gage 2.0 Inch Diameter

The Mitutoyo 177-187 is a precision setting ring gage designed for the accurate calibration and setup of inside micrometers, Holtest internal micrometers, and dial bore gages. This Type A setting ring features a 2.0 inch (50.8mm) nominal bore diameter and serves as a master reference standard for ensuring measurement accuracy.

Key Specifications:

• Nominal bore diameter: 2.0 inches
• Outside diameter: 85mm (3.35 inches)
• Thickness (T): 20mm (0.79 inches)
• Distance from side face (H): 3.5mm
• Warranted calibrated surface size (K): 13mm
• Type A configuration

Applications and Benefits:

• Provides quick and accurate zero setting for dial bore gages and Holtest instruments
• Essential for calibrating inside micrometers to ensure measurement precision
• Precision ground and lapped bore surface with certified dimensional accuracy
• Compact design allows for convenient storage and portability
• Manufactured to Mitutoyo's stringent quality standards for long-term reliability

Setting ring gages are critical tools in any precision measurement environment, serving as master standards to verify and calibrate bore measuring instruments before use. The warranted calibrated surface ensures traceability and measurement confidence for quality control and inspection applications.