Introducing the JBO Thread Ring Gauge (NoGo) for UNEF threads—Right Hand, 2A, 1 3/8 x 18. This precision instrument helps quality inspectors, engineers, and shop technicians quickly verify external thread diameters and instantly flag non-conforming threads with its NoGo design, ensuring proper fit in assemblies used across manufacturing, automotive, and aerospace applications.

• No-Go verification for quick pass/fail checks: The NoGo feature enables rapid detection of undersized or out-of-t specification threads, reducing inspection time and minimizing rework by giving a clear go/no-go result.
• Rugged hardened steel construction with knurled grip: Built for daily use in demanding environments, the hardened steel offers lasting wear resistance while the knurled edge ensures a secure, comfortable grip—even with gloves on.
• UNEF Right-Hand 1 3/8 x 18, 2A standard sizing: Provides consistent, repeatable measurements that align with Unified thread specifications, supporting reliable inspections across parts, batches, and suppliers.

By integrating this gauge into your inspection routine, you gain faster, more consistent thread verification, helping your team maintain quality and reduce downtime. The combination of precise sizing and a durable build ensures dependable performance in busy shops, while the clear NoGo indication helps catch non-conforming components early—keeping assemblies moving and outcomes predictable.