For larger the R/RX RTJ grooves. Setting master for setting comparators for R/RX RTJ R44-R81 ring groove diameters. Covers API 6A standard and non-API diameters rings R44, R45, R46, R47, R48, R49, R50, R51, R52, R53, R54, R55, R56, R57, R58, R59, R60, R61, R62, R63, R64, R65, R66, R67, R68, R69, R70, R71, R72, R73, R74, R75, R76, R77, R78, R79, R80 and R81.

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

All Prices in US Dollars.