The JBO Thread Ring Gauge (NoGo) in Metric Coarse is a precision go/no-go tool designed to verify external threads on components with confidence. Sized for M33 x 3.5 with a right-hand orientation and 6h tolerance, it helps inspectors and machinists confirm correct thread engagement without guesswork.

Crafted from hardened steel for durability, this gauge stands up to daily use in busy workshops. Its clear sizing cues and robust construction allow quick, repeatable checks—ensuring non-conforming parts are identified immediately and quality remains consistent across production runs.

• Go/No-Go quick verification: Delivers a clear pass/fail indication for external threads, speeding inspections and reducing guesswork on the shop floor.
• Hardened steel construction: Built to resist wear and maintain accuracy through heavy, daily use in demanding environments, delivering long service life.
• Metric coarse size M33 x 3.5, Right-Hand: Aligns with common components and setups, enabling straightforward, reliable checks with minimal setup adjustments.

By using this ring gauge, you standardize thread inspection, reduce rework, and keep production moving smoothly. It supports consistent, repeatable results across batches, helps prevent misfits in assemblies, and integrates seamlessly into everyday QA workflows.