10-749-0 Setting Ring 2.80"
Master Setting Ring
For comparative gaging, calibration and the setting of internal measuring tools.
- 2.80" Size
- + 0.00010" Accuracy
- 0.000031" Taper / Ovality
- Made from oil hardened non-shrinking steel
- Hardened and tempered to 62 RC
- Actual dimensions duly etched
- Cryogenic treatment for long-term dimensional stability
- Calibrated at 20º C under standards room conditions