The JBO Thread Plug Gauge is a precision tool designed to quickly verify metric fine-thread holes with confidence. Built for right-hand M24 x 1 threads in 4H tolerance, it’s ideal for engineers, machinists, quality teams, and workshop technicians who require reliable hole sizing without guesswork.

• Metric fine-thread compatibility (right-hand): Engineered specifically for metric fine threads, including M24 x 1 right-handed holes, enabling precise hole inspection and reducing guesswork in assembly.
• Go/No-Go quick checks: The Go and No-Go limits let you confirm both minimum and maximum hole sizes in a single test, speeding setup and quality control.
• Durable, hardened steel construction: Built for busy shops, the hardened steel resists wear and holds its accuracy through repeated use, even in demanding environments.

With this gauge in your toolkit, you’ll streamline threaded-hole inspection, reduce rework, and ensure consistent thread engagement across parts. Its durable build and easy Go/No-Go checks help keep production running smoothly, so you can trust measurements from first article to final assembly.