6-5/8" Reg Ring Gage

 6-5/8″ Regular Rotary Shouldered Connection (REG) Work Ring Gauge made in China.

6 5/8 REG API thread gauge-REG 6 5/8" API ring plug gage supplier in China

 6-5/8" API REG, 5½" & 6-5/8" API Full Hole

Chinese made Regular Rotary Shoulder Connection API Spec 7-2 working/master gage

 6-5/8″ Regular Rotary Shouldered Connection (REG) Work Ring Gauge

API 7-2 6-5/8 Reg Ring Guage and Plug Gauge with Calibration Certificate

API 6-5/8 REG Thread Ring Gauge and Plug Gauge

sowant precision gage can offer you best china made high quality thread gages include the API HBPV thread API 6-5/8 REG Thread ring and and plug gages, Ring Gauge and Plug Gauge. 1 Year Warranty, also include the bcsg thread gages ,tub thread gages,ACME THREAD GAGES.