Designed for UNF left-hand threads (1 in diameter, 12 threads per inch) in 2A class, the JBO Thread Ring Gauge (GO) provides fast, go/no-go verification of external threads. Built from hardened steel, it stands up to daily workshop use while delivering consistent, reliable checks for quality control.

• UNF LH 1-12 Go Gauge for precise thread verification: Specifically sized for UNF left-hand threads at 1 x 12, it delivers quick, accurate pass/fail checks that align with standard thread dimensions, helping you verify components at a glance without guesswork.
• Hardened steel construction for durability: Crafted from high-quality hardened steel, this gauge resists wear, maintaining its accuracy even after heavy use in demanding environments.
• User-friendly inspection workflow: Its simple design makes it easy to identify compliant threads fast, reducing inspection time and downtime while ensuring consistent results across operators.

Using this gauge translates to faster qualification of parts, fewer reworks, and consistent results across teams. Its rugged build and straightforward operation help you maintain tight tolerances in busy production environments, boosting overall efficiency and confidence in every threaded assembly.