The JBO Thread Ring Gauge (NoGo) for Metric Coarse threads is a precision inspection tool designed to verify external thread diameters with consistent, reliable results. Ideal for engineers, buyers, tradespeople, and technicians, it ensures metric coarse connections meet exact standards through straightforward NoGo checks. Crafted from hardened steel with Right Hand orientation, 4h tolerance, and M1.1 x 0.25 thread, this gauge delivers durable, long‑lasting performance in demanding workshop environments.

• Precise NoGo verification for metric coarse threads: Quickly confirm whether a threaded part is out of tolerance, enabling fast decisions and reducing rework by clearly identifying non-conforming components.
• Durable hardened steel construction: Built to withstand daily shop use, resisting wear and deformation to maintain accuracy and extend service life in harsh environments.
• Simple, inspection‑ready design: Easy to align and interpret, providing clear fit/no-fit feedback that speeds up inspections and minimizes operator errors.

Using the JBO Ring Gauge simplifies quality control, supports consistent manufacturing results, and helps your team achieve reliable, standard‑compliant connections with fewer delays in the production line.