The JBO Thread Plug Gauge is a precision tool designed for metric coarse threads. Use it to quickly verify threaded holes for M14 x 2 fasteners, with a go/no-go design that streamlines acceptance testing for engineers, machinists, and maintenance teams. The compact gauge is built for real-world shop conditions and suits right-hand threads, 4H tolerance, and standard coarse-thread applications.

The gauge features a knurled, easy‑to‑grip central barrel for secure handling during inspection, plus hardened steel construction to resist wear in demanding environments. Its durable build ensures reliable performance over many cycles of use, providing consistent go/no-go results when checking hole threads.

• Go/No-Go quick-check design: Enables fast, clear pass/fail assessments of threaded holes, reducing guesswork and speeding up quality checks.
• Hardened steel construction: Delivers long-lasting durability that stands up to repeated use and harsh workshop conditions while preserving accuracy.
• Metric coarse thread focus (M14 x 2, right-hand): Precisely calibrated for common coarse metric threads, ensuring correct and reliable checks for standard components and assemblies.

This plug gauge helps streamline inspection workflows by delivering dependable pass/fail results for coarse metric threads, improving throughput and confidence in assembly fitment. Its robust construction and practical design make it a dependable addition to any toolbox or inspection kit, supporting consistent outcomes across jobs and teams.