The JBO Thread Ring Gauge (NoGo) is a precision tool designed to verify external UNF threads. Specifically configured for right-hand 7/8 x 14 threads in class 2A, it helps shops, manufacturers, and service teams quickly confirm that parts meet the standard diameter and fit requirements.

With its NoGo design, you can instantly spot out-of-tolerance threads and avoid assemblies with threaded components that won't seat properly. Built from hardened steel, it delivers durability under heavy use and maintains accuracy across many inspections.

• Go/No-Go Verification for Quick Conformance: rapidly confirms whether external threads are within tolerance, speeding up inspection and reducing rework on the shop floor.
• UNF 7/8 x 14 Right-Hand, 2A Class Precision: engineered to match the standard UNF external thread size and tolerance, ensuring reliable measurements and consistent results across parts.
• Hardened Steel Construction: built for long life in demanding environments, resisting wear and corrosion to maintain accuracy over repeated use.

This gauge helps streamline quality control, minimize downtime, and improve the reliability of threaded assemblies by providing clear, immediate pass/fail feedback during inspection and assembly workflows.