JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6h - M39 x 2 G Ball Nose Geometry for Smooth

Ball Nose Geometry for Smooth Contours: Produces accurate curved surfaces and fine rib details with a high-quality

this reamer offers superior durability for repeated use across a range of common metals

Shank: Straight shank for secure mounting in standard collets and chucks

clean bore quickly and consistently

This intermediate precision finishing tool is built for engineers

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6h - M39 x 2 G Ball Nose Geometry for SmoothThe JBO Thread Ring Gauge (NoGo) is a precision inspection tool designed to verify external metric threads. Specifically tuned for metric fine threads, it checks M39 x 2 with a 6H tolerance and right hand orientation, helping quality teams, machinists, and assembly technicians quickly determine whether a part meets specification. Built from hardened steel for durability, this gauge delivers reliable performance in busy workshops. The clearly defined