JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M39 x 3 FLH Hardened steel construction for long

Hardened steel construction for long life: Rugged

reducing setup time and eliminating grip failures in challenging workpieces

That means less downtime swapping tools

Ball Nose Geometry: Radiused tip facilitates accurate contouring

and sustained performance under demanding milling conditions

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M39 x 3 FLH Hardened steel construction for longThe JBO Thread Ring Gauge (NoGo) Metric Fine Right Hand 6g M39 x 3 is a precision inspection tool designed to verify external threads with speed and confidence. Built for machinists, quality engineers, and assembly teams, it provides quick go no go results to confirm parts meet the M39 x 3 metric fine standard within the 6g tolerance. Manufactured from hardened steel, this gauge delivers durable, long lasting performance in demanding workshop