The JBO Thread Ring Gauge GO - Metric Coarse - Left Hand - 6g - M2 x 0.4 is a precision inspection tool designed to quickly verify external thread sizes on metric coarse fasteners. It’s ideal for quality control teams, machine shops, assembly lines, service technicians, and hobbyists who need reliable, pass/fail checks to ensure parts meet exact threading specifications.

Crafted from hardened steel for exceptional durability, this LH GO gauge resists wear in busy environments and maintains accurate measurements over many uses. The 6g tolerance class and the M2 x 0.4 coarse thread specification ensure consistent results that align with industry standards, making it a dependable choice for routine threaded-component checks.

• Hardened steel construction: Delivers long-lasting durability and wear resistance for repeatable, trustworthy measurements in demanding shop environments.
• Metric coarse LH GO design (M2 x 0.4, 6g): Precisely sized for left-hand M2 x 0.4 threads, enabling fast, reliable pass/fail checks that conform to standard Thread GO requirements.
• Ergonomic, easy-to-use design: Knurled exterior and smooth bore allow secure grip and quick alignment, even in tight spaces or with gloves on.

This gauge helps streamline inspection workflows by providing clear, repeatable results that reduce downtime and prevent misfits in final assemblies. With trustworthy construction and precise dimensions, you can rely on consistent performance every time you verify metric coarse threads.