The JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. This Right Hand, 6H class gauge is specifically configured for M6 x 0.35 threads, helping engineers, machinists, and quality inspectors quickly verify internal threads and ensure reliable assembly. Its Go/No-Go design supports fast, objective checks, so you can confirm hole Gender, tolerance, and fit with confidence.

• Go/No-Go quick-check: Enables fast pass/fail verification of threaded holes, reducing guesswork and speeding up quality inspections.
• Metric fine-thread precision (M6 x 0.35, 6H): Engineered for the exact M6 x 0.35 right-hand threads and 6H tolerance, delivering consistent, dependable results in precision work.
• Durable hardened steel with knurled grip: Built to withstand daily use in demanding environments, with a textured surface for secure handling and precise placement.

Used across manufacturing, machining, and maintenance workflows, this gauge helps you confirm thread compatibility quickly, cut downtime, and improve assembly reliability. Its rugged construction means long service life in busy shops, while the clear Go/No-Go feedback supports repeatable results and higher first-pass quality.