JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M68 x 1.5 FHH Benefits: The TiAlN coating paired

Benefits: The TiAlN coating paired with a robust HSS-E core extends tool life in tough milling conditions

Its left-hand spiral flute and right-hand cutting orientation deliver reliable material removal and stable hole geometry in metalworking applications

2 mm radius creates gentle fillets in corners and grooves

Durable hardened steel construction: Designed to withstand daily workshop use

ideal for professionals who need consistent bore diameters and smooth finishes

JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M68 x 1.5 FHH Benefits: The TiAlN coating pairedThe JBO Thread Ring Gauge (GO) is a precision tool designed to verify external metric threads quickly and reliably. Built for metric fine pitches, this GO gauge is specifically suitable for left hand threaded components and features an M68 x 1. 5 specification to match common inspection needs. Its ideal for engineers, machinists, quality inspectors, and maintenance staff who need consistent, on the job accuracy. Crafted from hardened steel, the gauge