The JBO Thread Ring Gauge (NoGo) – Metric Coarse – Left Hand – 6g – M36 x 4 is a precision inspection tool designed to verify external thread diameters quickly and consistently. Built for engineers, machinists, quality teams, and workshop technicians, it helps you confirm that metric coarse threads meet the required tolerance without guesswork. The NoGo gauge provides a clear pass/fail signal for non-conforming parts, supporting reliable quality control across manufacturing and assembly workflows.

• Go/No-Go quick-check for metric coarse threads: Quickly confirm whether external threads meet the M36 x 4 size and 6g tolerance, so you can approve good parts or flag rejects in seconds.
• Hardened steel construction for long life: Rugged, wear-resistant material delivers lasting accuracy in busy inspection benches and demanding shop environments.
• Left-hand thread compatibility and clear usage: Specifically designed for left-handed components, with intuitive orientation to reduce errors and speed up inspections.

This gauge supports streamlined quality control by delivering reliable, repeatable results that reduce rework and downtime. By ensuring threads conform to the intended M36 x 4 coarse specification, it helps you achieve consistent fitment and dependable performance across assemblies in a wide range of industries.