The ideal setting master for setting comparators for API 6A standard R/RX RTJ ring groove diameters. Covers API 6A standard rings R20, R23, R24, R26, R27, R31, R35, R37, R39, R41 and R44.

These gages are precision made from hardened tool steel for stable sizing and long life. Each gage comes with along form certificate of calibration NIST traceable.

All Prices in US dollars.