JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M40 x 0.75 FMH FLH FHH S&E A&NF M&D Compared to traditional high-speed steel

Compared to traditional high-speed steel options

10 Micron Run-Out: Delivers exceptional concentricity for precise tool positioning

tool-free changes and reduced downtime

HSS-E (M35 cobalt) construction: Delivers superior wear resistance and heat tolerance

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M40 x 0.75 FMH FLH FHH S&E A&NF M&D Compared to traditional high-speed steelThe JBO Thread Ring Gauge (GO) Metric Fine Right Hand 6g M40 x 0. 75 is a precision tool for verifying external thread diameters to metric fine standards. Its an essential instrument for engineers, machinists, inspectors, and maintenance teams who need fast, reliable confirmation that threaded components meet exact specifications. Crafted from hardened steel for outstanding durability, this GO ring gauge withstands daily workshop use and resists wear