JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M39 x 1 FMH FLH FHH S&E A&NF M&D helping you complete molds and

helping you complete molds and dies more efficiently while preserving tight tolerances and finish quality

Constructed from durable carbide

and maintain consistent threading across parts

Perfect for shops prioritizing reliable performance in aluminum-focused work

Its compact 15 mm diameter and 5 mm bore fit standard slitting saw setups

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M39 x 1 FMH FLH FHH S&E A&NF M&D helping you complete molds andThe JBO Thread Ring Gauge (NoGo) is a precision tool designed to verify external threads against the M39 x 1 metric fine standard. Built for right hand threads (6g tolerance), it helps shops, manufacturers, and QA teams quickly confirm part conformance and identify non conforming components with confidence. Made from hardened steel, this gauge delivers durable, long lasting performance in demanding environments while delivering reliable, repeatable