The JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. It’s ideal for machine shops, maintenance teams, and quality engineers who need fast, dependable checks of threaded holes.

Designed for M14 x 0.5 fine threads in a Right Hand orientation with a Go/No-Go design, it delivers quick, clear pass/fail results to keep setup and assembly moving smoothly. The gauge is manufactured from hardened steel, ensuring lasting performance and resistance to wear in busy work environments.

• Go/No-Go quick checks: Instantly confirm whether a threaded hole meets the target size, speeding inspections and reducing guesswork during setup and assembly.
• Hardened steel construction: Built to withstand daily use, delivering durable accuracy and long service life in demanding workshop conditions.
• Metric fine-thread compatibility (M14 x 0.5, Right Hand, 6H): Precisely matched to standard metric holes, providing consistent measurements and minimizing rework across parts and batches.

This gauge helps you streamline quality control, improve workflow reliability, and ensure consistent results across production runs. With a rugged build and clear Go/No-Go feedback, it supports confident decisions in engineering, manufacturing, and maintenance tasks.