The JBO Thread Ring Gauge (NoGo) is a precision tool for verifying external thread diameters, helping engineers, machinists, and quality teams confirm parts meet tolerances and fit reliably in assemblies. Designed with metric fine pitch for right-hand threads, it uses M85 x 4 with a 6g tolerance, and is crafted from hardened steel for durability in demanding environments.

• Go/No-Go quick checks: Instantly determine whether the thread diameter is within spec, enabling fast pass/fail decisions and reducing rework.
• Rugged hardened steel construction: Built to withstand daily use in busy shops, delivering long tool life and consistent performance across inspections.
• Precise, repeatable metrics: The metric fine thread specification (M85 x 4, 6g, right-hand) ensures accurate, repeatable checks every time, supporting quality control with confidence.

Using the JBO Thread Ring Gauge in your inspection routine helps you speed up workflows, minimize misfits, and ensure compliant, high-quality assemblies from the first check. Its durable design and clear go/no-go feedback give your team the clarity needed to make quick, informed decisions, boosting overall reliability and efficiency in production or maintenance environments.