The JBO Thread Plug Gauge is a precision tool for metric fine threads, designed for quick, reliable Go/No-Go inspections of M6 x 0.75 threaded holes. With right-hand orientation and 4H tolerance, it’s ideal for machining, assembly, and quality control where thread fit matters.
Built with hardened steel for long life and wear resistance, this gauge delivers consistent results in demanding environments.

• Go/No-Go Quick Checks: Instantly verify hole tolerance with fast pass/fail results to speed up assembly and reduce rework.
• Durable Hardened Steel: Built to last in busy shops, resisting wear and maintaining accuracy over time.
• Metric Fine Thread Compatibility (M6 x 0.75, Right-Hand): Precisely designed for common metric fine threads, helping you avoid mismatches and ensure proper engagement.

With the JBO Thread Plug Gauge, you’ll streamline thread verification, cut inspection time, and improve the reliability of assembled parts. The rugged construction stands up to daily use in machining, toolmaking, or maintenance scenarios, delivering consistent results that you can trust in production and quality control workflows.