JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6h - M39 x 2 G this hand reamer provides predictable

this hand reamer provides predictable

spiral-flute reamer crafted from M2 high-speed steel for reliable

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

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

The to-order production and clear lead times help you plan purchasing with confidence

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6h - M39 x 2 G this hand reamer provides predictableThe 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