The JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. Specifically calibrated for M10 x 1.5 with right-hand threading and 6G tolerance, this go/no-go plug gauge quickly verifies threaded holes meet spec before assembly.

Built for professionals in manufacturing, repair, and maintenance—from engineers and buyers to machinists and hobbyists—this gauge helps ensure fasteners fit correctly and function reliably in your assemblies.

• Go/No-Go efficiency: The clear go and no-go checks let you confirm hole acceptance at a glance, speeding up quality control and reducing the risk of misfits or rework.
• Durable hardened steel: Hardened construction resists wear from frequent use, preserving accuracy and extending the gauge’s service life in demanding shop environments.
• M10 x 1.5 coarse-thread compatibility: Precisely machined for metric coarse threads, including M10 x 1.5 with right-hand 6G tolerance, ensuring reliable and repeatable measurements across common fasteners and applications.

Using this plug gauge streamlines your inspection workflow by delivering clear pass/fail results in seconds, helping you avoid incorrect part installs and costly downtime. Its rugged steel build maintains accuracy through heavy use, and its compact, hand-friendly design makes it easy to carry between machines or job sites. With this gauge, you can standardize thread checks across teams, improve part compatibility, and achieve more consistent, dependable results in every project.