JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M40 x 1.5 FMH Pitch: Fine pitch designed for

Pitch: Fine pitch designed for smooth

helping you hit target hole sizes with fewer rework steps

this reamer maintains accurate hole diameters and delivers a smooth finish even in challenging metals

predictable bore quality across a range of workpieces

helping you quickly confirm whether a tapped hole is within the required specification

JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M40 x 1.5 FMH Pitch: Fine pitch designed forThe JBO Thread Ring Gauge (GO) Metric Fine Left Hand 6g M40 x 1. 5 is a precision tool designed to streamline external thread inspection. Ideal for engineers, machinists, quality teams, and workshop technicians, it provides a clear go no go indication to verify that threaded parts meet the exact Metric Fine standard for left handed threads. Crafted from hardened steel for lasting performance, this GO ring resists wear in busy production environments