The JBO Thread Plug Gauge (NoGo) – Metric Fine, Right Hand, 6H, M75 x 4 is a precision inspection tool engineered to verify threaded holes to metric fine specifications. Designed for machinists, inspectors, maintenance technicians, and quality engineers, it provides a quick, reliable check to confirm holes are within the approved size and tolerance for proper thread engagement.

• Go/NoGo verification for Metric Fine threads: Quickly confirm hole size against the M75 x 4, 6H specification to prevent over- or under-sized threads and ensure reliable assembly.
• Hardened steel, built for durability: Hard-wearing construction resists wear and provides long service life in demanding workshop environments.
• Ergonomic knurled handle for precise checks: Secure grip and controlled alignment improve speed and accuracy, even when wearing gloves.

Using the JBO Metric Fine NoGo plug gauge helps streamline quality checks, reduce rework, and improve consistency across parts. Its rugged construction and precise dimensions give you confidence that every threaded hole will meet spec, supporting faster setup, better fit, and higher overall throughput.