Introducing the JBO Thread Plug Gauge, a precision tool designed for metric fine threads. Built for left-handed M10 x 1 holes within the 6H tolerance, it enables quick, confident verification of thread fit for engineers, machinists, quality inspectors, and maintenance teams alike.

• Metric fine-thread compatibility: Precisely sized for M10 x 1 metric fine threads, this gauge makes it simple to confirm hole size and thread engagement without guesswork during assembly or machining setups.
• Go/No-Go inspection: Go/No-Go design delivers a fast pass/fail reading—insert until it seats cleanly for a pass, or stop where it binds for a fail. This streamlined check reduces inspection time and minimizes the risk of post-assembly issues.
• Left-hand thread suitability: Specifically built to verify left-hand (reverse) M10 x 1 threads, ensuring accurate checks in reverse-threaded applications and preventing misfit in specialty fastener systems.

With the JBO Thread Plug Gauge, you can speed up quality checks, reduce rework, and improve consistency across assemblies that use metric fine threads. The hardened steel construction resists wear in busy workshops, delivering reliable performance over time, while the compact, knurled body provides a comfortable, secure grip for one-handed use. Rely on this gauge to streamline setup, verify hole tolerance quickly, and keep production flowing with fewer interruptions.