The JBO Thread Plug Gauge is a precision tool designed for metric coarse threads. Specifically calibrated for M6 x 1 left-hand applications, this Go/No-Go gauge lets you quickly verify threaded holes for proper fit and function. The knurled, durable body provides a secure grip for accurate checks in busy workshops.

Crafted from hardened steel, it stands up to frequent use in manufacturing, inspection, and maintenance, delivering consistent readings and long-lasting performance you can trust.

• Go/No-Go design for fast, confident checks: Quickly determine if a threaded hole meets spec, reducing inspection time and preventing misfits in assembly.
• Hardened steel construction for durability: Resists wear and deformation, maintaining accuracy through thousands of uses in tough workshop conditions.
• Left-hand M6 x 1 sizing with 6G tolerance: Precisely matches the target coarse thread, ensuring reliable pass/fail results and consistent quality across production runs.

With the JBO Thread Plug Gauge, you gain a dependable tool that streamlines quality control, speeds up setup, and reduces rework by catching thread issues at the source. Its rugged build and precise calibration deliver repeatable results, helping you maintain tight tolerance in every project—from maintenance tasks to high-volume manufacturing. Buy with confidence knowing you have a dedicated instrument for accurate thread verification whenever you need it.