The JBO Thread Ring Gauge (NoGo) is a precision tool designed to verify external BSP (G) threaded fittings. Sized for right-hand threads at 1 1/4 x 11 and tuned to Tol. A, it’s ideal for plumbers, engineers, and quality inspectors who need fast, trustworthy gauging of pipe thread diameters.

This NoGo gauge clearly signals non-conforming threads, helping ensure proper fitment and sealing and supporting reliable assemblies in plumbing, fluid handling, and general mechanical work.

• Go/No-Go BSP G verification: Quickly confirm conformance of external threads to BSP (G) standards, helping you spot non-conforming fittings before assembly and avoid leaks.
• Right-Hand 1 1/4 x 11, Tol. A: Precisely sized to common BSPG fittings, ensuring consistent readings and minimizing rework across plumbing and hydraulic projects.
• Rugged, precision-machined ring: Built for repeated use in workshop and field environments, with smooth operation, easy cleaning, and long-term stability of measurements.

This gauge helps streamline inspections, shorten setup time, and provide repeatable results from field installations to shop-floor QA. By delivering clear go/no-go feedback, it empowers technicians to select the correct fittings quickly, maintain consistent quality across jobs, and minimize downtime. Its robust construction ensures dependable performance over time, making it a reliable addition to any toolkit dedicated to safe, efficient fluid systems and threaded connections.