The JBO Thread Ring Gauge (NoGo) – Metric Fine is a precision tool that makes quick, confident checks of external thread diameters. It’s designed for engineers, machinists, inspectors, and technicians who need reliable go/no-go verification for metric fine threads.

Crafted from hardened steel for durability and wear resistance, this gauge withstands daily use in busy workshops and production lines while delivering repeatable results and easy identification of non-conforming components.

• NoGo quick-check design: Provides clear pass/fail feedback, helping inspectors rapidly identify parts that exceed or fall short of the diameter tolerance and minimizing rework.
• Hardened steel construction: Built to endure demanding environments, resisting wear, corrosion, and impact for long service life and consistent accuracy.
• Metric Fine accuracy (M58 x 1, right hand, 6h): Delivers precise, repeatable measurements aligned to industry standards, ensuring reliable fit and quality across threaded components.

With the JBO Thread Ring Gauge in your toolkit, inspections become faster, more consistent, and less prone to human error. The robust design and exact specifications support reliable acceptance decisions, reduce downtime, and help you meet tight quality targets across batches and operators.