JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6h - M39 x 2 G this reamer offers superior durability

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

it maintains tight alignment through every hole

this hand reamer provides predictable

This reamer helps you achieve precise

Quick-change Design: Swap taps in seconds to keep production moving and reduce non-cutting downtime

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6h - M39 x 2 G this reamer offers superior durabilityThe 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