The JBO Thread Ring Gauge (GO) for UNC is a precision inspection tool designed to verify external thread diameters quickly and reliably. It is intended for engineers, machinists, quality teams, and anyone working with Unified Thread Standard fasteners, helping ensure components meet UNC specifications with consistent accuracy.

Crafted for the shop floor and QC labs, this GO gauge streamlines go/no-go checks, reduces rework, and supports tight-tolerance assemblies. Its durable construction and intuitive design deliver dependable performance in demanding environments.

• Precise UNC GO gauge for No. 6 x 32 (Right Hand, 3A): The internal thread is machined to the exact GO size for No. 6 x 32 UNC, enabling fast, confident checks of external threads and ensuring conformance at the inspection point.
• Hardened steel construction for durability: Built from hardened steel to resist wear, maintain dimensional stability, and withstand daily handling in busy workshops and production settings.
• Ergonomic, user-friendly design: Knurled exterior provides a secure grip and easy handling on the bench, allowing quick identification of conforming parts during QA checks.

Using the JBO UNC GO Ring Gauge helps speed up quality checks, reduce downtime, and improve consistency across assemblies. Its rugged construction and straightforward Go sizing give you a reliable reference for external thread validation, so you can trust measurements across shifts and job lots.