JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6h - M39 x 1.5 Widin New 5 mm radius edge promotes

5 mm radius edge promotes smooth contouring and clean corners

reduced cooling needs

delivering cleaner finishes and reducing tool wear

The cutting tolerance is +0/-0

delivering consistent results with durable performance and reduced downtime

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6h - M39 x 1.5 Widin New 5 mm radius edge promotesThe JBO Thread Ring Gauge (GO) is a precision tool designed to verify external threads with speed and confidence. This GO gauge is tailored to Metric Fine, Right Hand 6h M39 x 1. 5, making it ideal for machining, assembly, and quality control where thread accuracy matters. Machined from hardened steel, it resists wear and keeps its exact dimensions through heavy use in busy workshops. The straightforward GO design makes it easy to identify properly