The JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. Built for M15 x 1 right-hand applications and 6H tolerance, it helps ensure your holes accept mating components with exact fit. The Go/No-Go design enables quick, reliable checks during setup, production QA, or field service, reducing guesswork and rework.

• Go/No-Go Quick Checks: Fast pass/fail verification for M15 x 1 holes, enabling rapid setup and QA checks without disassembly.
• Metric Fine Thread Compatibility: Precisely sized for metric fine threads (6H) on M15 x 1, ensuring accurate assessment of hole readiness and mating thread engagement.
• Hardened Steel Durability: Built from hardened steel for long service life, resisting wear in busy workshop environments and preserving accuracy over time.

Using this gauge streamlines threaded-hole inspection, helping you confirm part compatibility in minutes instead of hours. It supports consistent assembly across batches, cuts downtime, and delivers reliable results that you can trust in production, maintenance, and repair workflows.