The JBO Thread Plug Gauge is a purpose-built tool for metric fine threads. Specifically designed for M11 x 1 holes, this left-hand, 6G Go/No-Go gauge provides fast, reliable checks that help ensure components thread cleanly and fit together every time.

Engineers, machinists, inspectors, and mechanics rely on its simple, repeatable action to verify hole tolerance without guesswork, reducing downtime and rework in production or maintenance environments.

• Go/No-Go Quick Verification: Quickly determine if a threaded hole is within spec, speeding inspections and removing guesswork from the quality process.
• Metric Fine Thread Precision (M11 x 1): Engineered specifically for M11 x 1 fine threads, ensuring accurate acceptance checks and consistent results across jobs.
• Durable Hardened Steel Construction: Built to withstand repeated use in demanding workshops, delivering long tool life and reliable performance.

This gauge simplifies your workflow by delivering repeatable, trustworthy checks that support precise assembly and quality control. With quick Go/No-Go verifications and a robust, wear-resistant construction, you’ll save time, reduce rework, and achieve dependable results on any project requiring exact metric fine-thread matching.