The JBO Thread Plug Gauge is a precision instrument designed to verify internal metric coarse threads quickly and reliably. It’s ideal for machinists, inspectors, and assembly teams who need fast, consistent checks of threaded holes for M6 x 1 right-hand threads.

Built to endure daily use, this plug gauge employs hardened steel construction to deliver long-lasting performance and stable measurements across many inspections.

• Go/No-Go quick validation: Instantly confirms whether a threaded hole meets the M6 x 1 coarse-thread specification, reducing inspection time and eliminating guesswork.
• Rugged, hardened steel construction: Withstands heavy use in demanding shop environments while preserving accuracy and edge life.
• Right-hand 6G/M6 x 1 precision alignment: Precisely sized for common metric coarse threads, delivering repeatable checks and reliable fit for components.

Using the JBO Thread Plug Gauge helps streamline quality control by providing fast, confident pass/fail decisions on thread acceptance. It supports consistent assembly, minimizes rework, and helps you maintain tight tolerance across parts, improving overall manufacturing workflow and reliability.