The JBO Thread Plug Gauge is a precision tool designed to quickly verify internal metric coarse threads. Specifically tailored for M10 x 1.5 coarse threads and a left‑hand configuration, this Go/No‑Go gauge helps you confirm tapped holes meet exact specs without trial threading. It’s an essential instrument for machinists, quality inspectors, and maintenance teams who value fast, reliable checks and consistent results.

Designed for comfortable, repeatable use, the gauge features a knurled body that provides a secure grip during alignment and inspection. Constructed from hardened steel, it stands up to daily shop use, resisting wear and maintaining accuracy over thousands of checks. Its robust build is ideal for busy environments where reliability matters as much as speed.

• Go/No-Go Design for Fast, Reliable Checks: Quickly determine if the hole meets spec—Go should pass, No-Go should not—reducing inspection time and eliminating guesswork.
• Hardened Steel Construction for Durability: Built to endure rigorous use, delivering long tool life and stable measurements under heavy workloads.
• Left-Hand Metric Coarse Thread Fit (M10 x 1.5, 6G): Precisely calibrated for left-handed metric coarse threads, ensuring accurate, repeatable checks for compatible components and assemblies.

Used in production lines, repair shops, and field maintenance, this thread plug gauge helps you speed up quality control, minimize rework, and improve overall threading accuracy. With its durable construction and straightforward go/no-go operation, you can rely on consistent results day after day.