The JBO Thread Ring Gauge (GO) UNC Right Hand 2A No. 1 x 64 is a precision Go gauge used to verify external thread diameters against UNC standards. Designed for machinists, inspectors, and quality teams, it provides quick, reliable checks during assembly and inspection.

Built from hardened steel, it resists wear in demanding environments and maintains accurate dimensions over time. The No. 1 x 64 size with 2A class and right-hand threading ensures compatibility with a wide range of standard parts, helping you verify conformance fast.

• Hardened steel construction for lasting durability: Built to withstand daily use in busy workshops, resisting wear and maintaining tight tolerances for reliable thread verification over time.
• UNC Go gauge with Right-Hand 2A specification: Precisely matched to Unified National Coarse right-hand threads, delivering consistent go measurements that support fast, quality-first inspections.
• Compact No. 1 x 64 size for broad compatibility: A widely used size that fits a wide range of standard components, reducing gauge swaps and speeding up the inspection workflow.

This gauge streamlines your thread inspection process by delivering clear pass/fail results for each part, reducing guesswork and rework. The hardened steel design means fewer replacements and longer service life in demanding environments, so you can rely on consistent performance across shifts. With the UNC Right-Hand 2A specification and standard No. 1 x 64 size, you’ll experience faster setup, smoother workflow, and confident approvals of threaded components.