The JBO Thread Plug Gauge is a precision Go/No-Go tool designed for metric fine threads. It’s ideal for machinists, inspectors, and maintenance teams working with left-hand threads on M7 x 0.5 holes, ensuring holes meet the 6H tolerance quickly and reliably.

• Go/No-Go quick checks: The go/no-go design lets you confirm hole size and pitch in a single pass, speeding setup and reducing rework.
• Durable hardened steel: Hardened construction resists wear and maintains accurate checks even after repeated use in workshop or production environments.
• Left-hand metric fine-thread compatibility (M7 x 0.5, 6H): Specifically tuned for left-hand metric fine threads, ensuring accurate go/no-go checks for M7 x 0.5 holes within the 6H tolerance.

This gauge helps streamline quality control by delivering quick, reliable thread verification, helping you cut inspection time, minimize scrap, and maintain consistent performance across production runs.