JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6h - M3 x 0.25 Power Milling Chucks The square-edge design and carbide

The square-edge design and carbide construction provide high rigidity

With carbide construction built for durability and a range of specifications

and smooth surface finishes in fine-detail work

making it a dependable choice for workshops and production environments

extending tool life and reducing downtime for tool changes

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6h - M3 x 0.25 Power Milling Chucks The square-edge design and carbideThe JBO Thread Ring Gauge (NoGo) is a precise inspection tool designed to verify external metric threads. Built for engineers, machinists, quality inspectors, and workshop staff, it provides a clear, fast pass fail indication to ensure components meet exact thread size requirements without guesswork. Made from hardened steel for durability, this metric fine NoGo gauge is designed for right hand threads in the 6H class and M3 x 0. 25 pitch. The knurled