JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M27 x 1 G and pocket milling in a

and pocket milling in a single tool

The carbide construction offers long tool life under demanding machining conditions

user-friendly inspection: Easy to slip over the thread and quickly determine conformity

it stands up to daily workshop use and maintains reliable readings through years of inspection and assembly work

It’s a dependable tool that you can trust to deliver precise checks and long-lasting performance in a professional setting

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M27 x 1 G and pocket milling in aThe JBO Thread Ring Gauge (NoGo) Metric Fine Left Hand 6g M27 x 1 is a precision inspection tool for checking external threads. Designed for professionals across manufacturing, inspection, and assembly, it helps you confirm whether a thread matches the required size and tolerance at a glance. Crafted from hardened steel, this gauge offers durable performance in busy workshops. Its NoGo design quickly reveals non conforming threads, supporting reliable