The JBO Thread Ring Gauge (NoGo) is a precision tool for verifying external BSP (G) threads on fittings and connectors. Designed for left-hand threads, its Tol. A specification and 2 x 11 configuration make it ideal for plumbers, fluid-handling technicians, and engineers who need quick, reliable go/no-go checks to prevent leaks and cross-threading. This gauge helps ensure every pipe fitting seals properly by confirming conformity to BSP G standards during inspection and assembly.

• Fast, clear No-Go verification: The gauge provides an immediate go/no-go indication for BSP (G) external threads, speeding up inspections and reducing rework.
• Left-hand compatibility with Tol. A tolerance: Specifically crafted for left-hand BSP threads with tight Tol. A tolerance to ensure repeatable measurements across batches.
• Rugged, grip-friendly ring construction: Durable materials and a knurled edge allow easy handling in workshop conditions, resisting wear and maintaining accuracy over time.

With this gauge in your toolkit, you streamline quality control, minimize downtime, and consistently deliver properly seated connections on every job—whether you’re on-site or in the workshop. Its precise dimensions and robust design help you quickly identify non-conforming fittings, improving workflow and confidence in your sealing performance.