Introducing the JBO Thread Ring Gauge (GO) - Metric Coarse - Right Hand - 6g - M39 x 4. This Go-style ring gauge is designed to quickly verify external thread diameters against the M39 x 4 coarse thread standard, helping quality teams and technicians confirm proper fit and reliable assemblies.

Built from hardened steel, it delivers exceptional durability and wear resistance for daily use in workshops, manufacturing floors, and field service. Its precise dimensions support efficient inspections, so components meet exact specifications with confidence.

• Durable Hardened Steel Construction: Engineered to resist wear and maintain accuracy through heavy use, delivering lasting performance in demanding environments.
• Precise Metric Coarse GO Gauge (M39 x 4, Right Hand, 6g): Ground to exact specifications with right-hand threading, ensuring consistent, repeatable checks that align with standard metric coarse threads.
• Fast, Confidence-Boosting Thread Inspection: Designed for quick external-thread checks, helping inspectors make reliable pass/fail decisions and keep production moving.

This gauge supports streamlined quality control, reduces inspection time, and helps ensure threaded connections fit correctly right from the first assembly, enhancing overall reliability and performance across your projects.