The JBO Thread Ring Gauge (NoGo) for metric coarse threads is a precision inspection tool designed to verify external thread diameters with reliable, repeatable results. Built for quality control teams, machinists, and engineers, it supports M1.4 x 0.3 right-hand threads with a 6h tolerance to confirm proper fit and function before assembly.

• Durable hardened steel construction: Built to withstand daily use in busy workshops, delivering long life and excellent wear resistance so you can rely on consistent measurements over many parts.
• Precise metric coarse NoGo gauge for M1.4 x 0.3 right-hand threads (6h): Designed to quickly verify conformance to metric coarse thread standards, providing clear go/no-go results to identify non-conforming components at a glance.
• Easy-to-use inspection tool: Intuitive and straightforward, enabling fast checks that reduce inspection time and help maintain steady production flow across operators.

Using this gauge helps you maintain consistent quality across your parts, speeds up the inspection process, and minimizes rework by catching out-of-spec threads before they impact assembly or performance.