The JBO Thread Ring Gauge (NoGo) for BSP G threads is a precision inspection tool designed to verify external thread diameters on 1/4 x 19 fittings. Built for right-hand use (Tol. B), it delivers quick, reliable checks to ensure BSP G conformity and proper sealing in plumbing, fluid handling, and engineering applications.

• No-Go design: Quickly identify non-conforming threads, reducing inspection time and preventing mismatched fittings that could leak or fail under pressure.
• Precisely sized for 1/4 x 19 BSP G threads: Enables accurate diameter validation against BSP standards, supporting consistent, leak-free connections.
• Rugged right-hand construction (Tol. B): Built to endure daily use in busy workshops and field environments, delivering durable performance and long service life.

With this gauge in your toolkit, you can accelerate quality checks, improve assembly reliability, and minimize downtime by catching non-conforming parts before they reach service. It provides clear, dependable results for plumbers, engineers, and maintenance teams working with BSP fittings across a range of industries.