JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M75 x 1.5 FMH Its compact size makes it

Its compact size makes it a practical choice for engineers

and a ready-to-use tool that fits common holders

balancing chip clearance and tool strength

and hobbyists who need reliable bore accuracy in metal parts

The tool's taper shank secures in compatible drill presses or milling fixtures

JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M75 x 1.5 FMH Its compact size makes itThe JBO Thread Ring Gauge (GO) Metric Fine is a precision inspection tool designed to confirm external thread diameters with speed and confidence. Ideal for engineers, machinists, quality teams, and workshop technicians, it provides a clear Go reference to verify parts meet metric fine thread specifications. This left hand gauge, sized M75 x 1. 5 with a 6g tolerance, is crafted from hardened steel to deliver durable, wear resistant performance in busy