The JBO Thread Plug Gauge is a precision Go/No-Go tool designed to verify metric fine threads in threaded holes. It's ideal for engineers, machinists, quality inspectors, and assembly teams who need quick, reliable checks to ensure parts fit together correctly.

Built for right-hand M15 x 0.75 threads in the 6G tolerance class, this gauge delivers repeatable results during setup, inspection, and in-process checks. It features hardened steel construction for long life in demanding workshop environments.

• Go/No-Go design for fast, decisive checks: Quickly determine if a hole meets the M15 x 0.75 thread specification, using go (fits) and no-go (does not fit) limits to confirm proper tolerance with minimal downtime.
• Durable hardened steel construction: Withstand daily use, resist wear, and maintain accuracy, reducing calibration drift and extending tool life in busy shops.
• Precise right-hand, metric fine threading (6G): Machined to exact M15 x 0.75 with 6G tolerance to ensure repeatable gauging results across production runs.

This plug gauge helps you speed up quality control, reduce guesswork during assembly, and achieve consistent results across batches. By enabling fast Go/No-Go checks, it minimizes downtime and rework, while its durable construction keeps it reliable mile after mile in busy workshops.