The JBO Thread Plug Gauge (NoGo) - Metric Fine - Right Hand - 6H - M85 x 1.5 is a precision inspection tool designed to verify metric fine threaded holes to their NoGo limit. It’s an essential instrument for machinists, inspectors, and maintenance teams who need quick, reliable confirmation that holes meet the M85 x 1.5 standard within the 6H tolerance, ensuring proper fit and performance in assemblies.

Built for everyday use, the gauge features a durable, knurled body for a secure, comfortable grip and a hardened steel tip for long-lasting accuracy in demanding workshop environments. The right-hand orientation aligns with standard metric threading workflows, making it easy to integrate into existing inspection routines.

• NoGo limit verification: Confirms the hole does not exceed the upper size limit for metric fine threads (M85 x 1.5, 6H), delivering a clear pass/fail result and reducing guesswork in quality checks.
• Durable hardened steel construction: Resists wear and maintains calibration through repeated use, providing dependable measurements in busy shop settings.
• Ergonomic, knurled design: Easy to grip and align, enabling quick, repeatable checks with less hand fatigue during extended inspection sessions.

Using this gauge helps you speed up inspections, improve first-pass acceptance, and minimize rework across manufacturing and maintenance workflows. Its precise focus on metric fine threads, combined with robust construction and a comfortable grip, supports consistent results and confidence in every measurement, from incoming parts to final assembly.