JBO Thread Plug Gauge (GO) - Metric Coarse - Left Hand - 6H - M52 x 5 is a precision go gauge used to verify the accuracy of metric coarse threaded holes. Designed for machinists, quality inspectors, and assembly teams, it confirms that holes conform to the M52 x 5 coarse-thread standard, allowing fast, reliable checks during fabrication, assembly, or maintenance.

• Precise GO gauge for metric coarse threads: Quickly verify that threaded holes meet the M52 x 5 coarse-thread standard, enabling fast pass/fail decisions without guesswork.
• Hardened steel for long wear life: Built to withstand daily use in busy workshops, resisting nicks and wear to maintain accuracy over time.
• Left-hand configuration with 6H tolerance: Specifically designed to match left-hand coarse threads within the 6H hole tolerance, ensuring consistent measurements for specialized components.

With the JBO GO gauge, you can streamline quality control and assembly workflows. Its reliable, repeatable checks reduce rework, shorten inspection times, and help you maintain tight dimensional control across production runs. Made from durable hardened steel and engineered for straightforward use, this gauge supports confident decisions in both high-volume manufacturing and precision engineering environments.