The JBO Thread Ring Gauge (GO) for UNF right-hand threads is a precision tool designed to quickly verify external thread diameters. It is sized for 1/2-20 UNF threads (2A class) and used to determine whether components meet the GO limit, supporting fast, confident pass/fail decisions in quality control and manufacturing environments.

Crafted from hardened steel with a durable knurled exterior, this GO gauge resists wear and maintains accuracy through daily use in busy workshops, labs, and production lines. Its robust construction ensures reliable performance over time, even in demanding environments.

• Go gauge for UNF 1/2-20 Right-Hand Threads: Quickly confirm external thread diameter against the GO limit for 1/2-20 UNF (2A), delivering fast pass/fail results during quality checks.
• Hardened steel construction: Built to endure daily use, resisting wear and corrosion while maintaining precise dimensions for long-term reliability.
• Intuitive, grip-friendly design: Knurled outer surface and clean geometry make handling and alignment simple, minimizing setup time and reducing inspection errors.

With the JBO Thread Ring Gauge (GO) for UNF threads, you gain a dependable tool that streamlines inspection workflows, helps ensure consistent thread quality, and reduces rework. Its durable construction and clear GO validation enable confident decisions on every part, from initial prototyping to full-scale production.