The JBO Thread Plug Gauge (GO) is a precision inspection tool designed to quickly verify metric fine threaded holes. Geared for professionals across manufacturing, machining, and quality control, it confirms that holes meet the minimum size for metric threads with a right-hand orientation and 6H tolerance (M138 x 2), helping you catch undersized or out-of-spec parts early in the process.

• Go gauge for quick hole validation: Instantly confirms whether threaded holes meet the minimum size, speeding up inspections and reducing guesswork.
• Durable hardened steel construction: Built to withstand daily use in demanding environments while maintaining tight tolerances and long service life.
• Ergonomic knurled body with metric fine-thread compatibility (M138 x 2, right-hand, 6H): Easy to grip, aligns quickly in tight spaces, and delivers consistent results with standard metric threads.

With the JBO Thread Plug Gauge, you can streamline quality checks, reduce downtime, and ensure consistent threading results across parts and shifts. Its rugged construction and thoughtful design provide dependable performance in busy workshops, while the intuitive GO feature makes acceptance testing straightforward for both seasoned inspectors and new operators alike.