Meet the JBO Thread Ring Gauge (NoGo) – Metric Fine, Right Hand, 6g, M39 x 2. This precision tool helps you quickly verify external thread diameters and identify non-conforming parts, supporting reliable quality control across manufacturing, assembly, and maintenance environments.

• Go/No-Go quick verification: Quickly determine whether a part's external thread diameter falls within specification, enabling fast decisions and reducing inspection time on busy lines.
• Durable hardened steel construction: Built to resist wear and maintain accuracy through daily use in QC labs and workshops, delivering long tool life.
• Metric Fine compatibility: M39 x 2 with 6g right-hand thread: Specifically sized for standard metric fine threads, ensuring precise matching and dependable checks for M39 x 2, right-hand threads.

The gauge supports consistent, repeatable measurements, helping you improve workflow, reduce rework, and lock in precise thread tolerances with every inspection. Its robust design and accurate dimensions give technicians and engineers confidence that parts meet the required standards before moving to the next production stage.