The JBO Thread Ring Gauge (GO) is a precision tool designed to quickly validate external metric threads in manufacturing, maintenance, and inspection environments. Built for machinists, quality inspectors, engineers, and shop technicians, it helps confirm that threaded components meet exact tolerance and fit requirements with reliable, repeatable results. This GO gauge is tailored for left-hand metric fine threads and is suitable for sizes like M35 x 1 (6g), delivering durable performance in demanding settings.

• Hardened steel construction: Built to resist wear and maintain accuracy through thousands of inspections, ensuring long-term reliability in busy workshops.
• Fast, reliable GO indication: Clear go/no-go feedback lets you confirm thread conformity in seconds, reducing inspection time and downstream rework.
• Left-hand metric fine threading compatibility (M35 x 1, 6g): Specifically designed for left-hand metric fine threads, ensuring you measure the correct class and size with confidence.

Using this gauge streamlines quality control by providing fast, dependable checks of thread size and tolerance, helping assemblies fit correctly on first try and minimizing delays. Its rugged build and precise dimensions make it a trusted addition to any shop, machine, or lab where accurate thread verification matters.