The JBO Thread Ring Gauge (GO) for UNEF threads is a precision tool used to verify external threads on components, specifically sized for 11/16 x 24 left-hand threads in the 2A class. Built for machine shops, QA labs, and field maintenance teams, it provides fast, reliable pass/fail checks to ensure parts meet exact standards.

• Exact UNEF GO size for left-hand threads: Specifically calibrated for 11/16 x 24 UNEF left-hand threads (2A class), providing a precise go gauge reference to confirm conformity quickly on the shop floor.
• Hardened steel construction for lasting accuracy: Built to resist wear and maintain tight tolerances through heavy inspection workloads, delivering long-term reliability.
• Easy, intuitive pass/fail checks: Designed for straightforward use so inspectors can quickly identify conforming components, reducing training time and speeding up quality checks.

Using the JBO Thread Ring Gauge keeps your quality control steps efficient and dependable. It helps you confirm thread compatibility before assembly, reduces rework, and supports consistent, compliant results across production runs. The durable hardened steel body is built for daily use in demanding environments, providing reliable performance you can trust.