JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M135 x 4 RPTECH The M2 high-speed steel provides

The M2 high-speed steel provides strong edge retention for repeated use

improving overall workflow and finished-part quality

offering a 160 mm gauge length for stable tool positioning

For shops prioritizing uptime

precise performance in tight clearance areas

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M135 x 4 RPTECH The M2 high-speed steel providesThe JBO Thread Ring Gauge (GO) Metric Fine Right Hand 6g M135 x 4 is a precision go gauge designed to verify external threads to metric fine standards. It's an essential tool for engineers, quality teams, machinists, and hobbyists who need fast, reliable confirmation that threaded components meet exact size and pitch requirements. Crafted from hardened steel, this ring gauge delivers outstanding wear resistance and long term dimensional stability in