repeatable features in mold and die work
accurate alignment in standard toolholders and CNC setups
A W coating enhances wear resistance and machining stability
built in HSS for intermediate-precision hole finishing
The straight shank provides straightforward handling and compatibility with standard reaming handles
JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6g - M39 x 1 M&D repeatable features in mold andThe JBO Thread Ring Gauge (GO) Metric Fine, Right Hand, M39 x 1 is a precision inspection tool designed to verify external thread diameters on fasteners, fittings, and machined components. Its ideal for engineers, inspectors, machinists, and quality teams who need fast, reliable checks to confirm threads conform to exact standards. Specifically tuned for metric fine threads, including M39 x 1 right hand configurations, this GO gauge provides a quick