The JBO Thread Ring Gauge (NoGo) – Metric Coarse – Left Hand – 6g – M22 x 2.5 is a precision inspection tool designed to verify external threads on components with metric coarse threads. It’s ideal for engineers, machinists, quality-control teams, and maintenance personnel who need reliable pass/fail checks to ensure parts meet their intended fit and function.

Manufactured from hardened steel, this gauge resists wear in busy workshop environments and maintains tight tolerances for long-lasting accuracy. The NoGo design provides quick, clear readings to identify non-conforming threads, helping you uphold standards and reduce rework across production and assembly workflows.

• Precise NoGo verification for metric coarse LH threads: Quickly confirm that external threads do not exceed the nominal M22 x 2.5 size on left-handed components, delivering reliable pass/fail results and reducing guesswork.
• Hardened steel construction for durability: Built to withstand daily use in busy shops, resisting wear to preserve accuracy and extend tool life.
• Left-hand thread compatibility and 6g tolerance: Specifically designed for left-hand metric coarse threads (M22 x 2.5) with 6g class considerations to ensure correct inspection and reliable fit.

Using the JBO Thread Ring Gauge helps streamline quality checks, speed up part acceptance, and improve consistency when mating components with metric coarse, left-hand threads. It supports accurate, repeatable measurements in quality control, precision engineering, and general manufacturing environments, giving you confidence in every inspection and every assembly.