The JBO Thread Ring Gauge (GO) for UNC threads is a precision inspection tool designed to verify external thread diameters quickly and reliably. Sized for Right Hand, 2A class, No. 5 x 40, it helps technicians, inspectors, and machinists confirm components meet exact threading standards, reducing guesswork and rework on the line.

Crafted from hardened steel, this GO ring gauge offers standout durability and wear resistance for demanding shop environments. The knurled outer edge provides a secure grip for handling, even when hands are gloved or exposed to oil, making inspections straightforward and consistent.

• Go/No-Go quick verification: Enables at-a-glance confirmation that external UNC threads meet the 2A class and size, speeding inspections and reducing downtime.
• Hardened steel durability: Built to endure daily use with superior wear resistance, delivering long-lasting measurement reliability in busy workshops.
• Ergonomic knurled grip: Textured exterior enhances control and placement accuracy, improving efficiency when inspecting threaded components.

The JBO UNC GO Ring Gauge supports reliable pass/fail checks across various industries, helping you maintain consistent quality, streamline workflows, and achieve precise results with confidence. Its robust construction and thoughtful design translate into fewer reworks and more dependable outcomes in daily manufacturing and maintenance tasks.