The JBO Thread Ring Gauge (NoGo) is a precision tool designed to verify external UNC threads on left-hand components. Sized for 1 1/8 x 7 with a class 2A fit, it supports manufacturing, automotive, and aerospace applications where accurate thread verification matters.

Crafted from hardened steel for durability, the NoGo feature provides a clear pass/fail indication, helping inspectors quickly identify non-conforming threads and prevent misfits in critical assemblies.

• NoGo design for fast pass/fail checks: The no-go section allows quick visual confirmation of out-of-tolerance threads, reducing inspection time and preventing misfits in assemblies.
• Exact UNC size and Left-Hand orientation: Sized precisely to 1 1/8 x 7 UNC, Left-Hand, Class 2A, ensuring reliable external thread verification for left-hand fasteners and preventing incorrect parts from passing QA.
• Hardened steel construction for durability: Built to withstand daily use, resisting wear to maintain accuracy over many inspections and extending the gauge's service life.

This gauge helps streamline quality control by delivering consistent, reliable readings, reducing rework, and ensuring every threaded connection provides proper fit and function. Its rugged construction and precise sizing make it a dependable addition to inspection routines, machine shops, and maintenance operations.