The JBO Thread Ring Gauge (NoGo) is a precision inspection tool for external threads. It’s tailored for metric fine threads, specifically left-hand M52 x 1.5 with a 6g class, helping inspectors quickly verify thread sizes and conformity.

Made from hardened steel, this gauge delivers durable, wear-resistant performance even in busy workshops. Its straightforward, purpose-built design makes it easy to use during routine quality checks, enabling fast identification of non-conforming components and smoother production workflows.

• Precise metric fine M52 x 1.5 left-hand NoGo size: ensures accurate pass/fail checks for external threads, enabling quick verification against required standards.
• Hardened steel construction: provides exceptional durability and wear resistance for long service life in demanding environments.
• User-friendly NoGo inspection design: allows fast, reliable detection of non-conforming threads, reducing inspection time and boosting quality control efficiency.

With the JBO Thread Ring Gauge, you can trust that threaded components meet the exact M52 x 1.5 left-hand specification, improving workflow, reducing rework, and ensuring consistent results across production runs. Built for frequent use, this gauge supports engineers, machinists, and quality teams in delivering reliable, repeatable inspections every shift.