The JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. Precisely sized for M13 x 1 holes with 6H tolerance, this Right Hand gauge helps quality teams, machinists, and assembly technicians quickly verify thread acceptability and ensure precise fits in critical assemblies.

With a Go/No-Go design and a tough hardened steel body, it delivers reliable, long-lasting performance in busy workshop environments while maintaining tight tolerances essential for high-quality results.

• Go/No-Go Design for Fast Checks: Quickly confirm hole acceptance and tolerance compliance, speeding inspections and reducing guesswork.
• M13 x 1 Metric Fine Thread Verification: Engineered specifically for fine-thread holes, delivering precise go/no-go results for accurate assemblies.
• Durable Hardened Steel Construction: Built to withstand everyday workshop use, resisting wear and maintaining accuracy for longer service life.

Using the JBO Thread Plug Gauge streamlines quality control, minimizes guesswork, and helps you verify threaded holes quickly and reliably. The combination of precise M13 x 1 sizing, 6H tolerance, Go/No-Go capability, and rugged hardened steel construction translates to fewer reworks, faster assembly, and more consistent results across batches.