The JBO Thread Ring Gauge GO for Metric Coarse threads is a precision inspection tool designed to verify external thread diameters and ensure components meet exact specifications. It is well-suited for engineers, quality teams, machinists, and hobbyists who need reliable, repeatable GO checks on metric coarse threads.

Constructed from hardened steel for exceptional durability, this GO gauge resists wear in busy workshops and maintains accurate measurements over time. With a right-hand thread orientation, coarse metric pitch of M2.2 x 0.45, and 6g tolerance, it delivers reliable, standard-compliant checks that support proper fit and function of threaded connections.

• Hardened steel construction for long tool life: Built to endure daily use, offering outstanding wear resistance so you can rely on it for thousands of measurements in busy environments.
• Precisely machined to M2.2 x 0.45 with 6g tolerance: Engineering-grade precision guarantees accurate, repeatable GO checks across parts and batches.
• Right-hand threading with easy handling: Intuitive orientation and a knurled exterior provide a secure grip and fast, confident measurements even in tight spaces.

Using this gauge streamlines your quality checks, reduces guesswork, and helps ensure every threaded connection threads smoothly with the correct size. The robust design minimizes downtime and maintenance costs, delivering consistent results that bolster confidence across engineering, procurement, and manufacturing teams.