Introducing the JBO Thread Ring Gauge (GO) - BSP (G) - Left Hand - Tol. A - 1/4 x 19. This Go-style gauge is designed to quickly verify external BSP G thread diameters, helping plumbers, fluid-handling professionals, and engineers confirm fittings will screw together smoothly and seal reliably.

• Go design for fast pass/fail checks: The Go-only approach lets you instantly identify properly conforming threads, speeding inspections and reducing guesswork in busy workshops.
• BSP G compatibility for reliable fittings: Precisely calibrated to BSP G standards, ensuring consistent measurements that support correct assembly and reliable sealing of pipe fittings.
• Left-hand orientation with Tol. A tolerance: Specifically configured for left-hand threaded applications, with Tol. A tolerance to deliver precise, repeatable measurements at 1/4 x 19.

This gauge supports efficient quality control and field verification, helping you streamline workflows, reduce downtime, and feel confident that every threaded connection will meet specification and perform under pressure.