The JBO Thread Plug Gauge is a precision tool designed to verify metric fine threads in threaded holes quickly and with confidence. Specifically suited for M25 x 1, right-hand thread applications (6G), it helps engineers, machinists, buyers, and assembly teams confirm that parts will thread together smoothly. Its simple Go/No-Go action provides clear pass/fail feedback during setup and in-process checks.

Built for durability, the gauge features a hardened steel construction that stands up to repeated use and maintains measurement accuracy over time. The knurled body offers a secure grip for comfortable handling and precise alignment during inspection.

• Go/No-Go Design for Quick Verification: Instantly determine whether a hole’s threads are within tolerance, speeding setup and reducing the risk of assembly delays.
• Hardened Steel Construction: Built to resist wear and provide long-lasting performance through many inspections in busy workshops.
• Metric Fine Thread Compatibility — M25 x 1, Right-Hand, 6G: Exact sizing and orientation ensure reliable checks for common metric fine-thread holes and consistent results.

This plug gauge streamlines quality control by delivering clear, reliable results that you can trust in high-demand production or workshop environments. With durable construction and precise Go/No-Go feedback, you can speed up inspections, reduce rework, and improve overall threaded-fit consistency across assemblies.