The JBO Thread Plug Gauge is a precision tool designed for metric coarse threads, specifically for Go/No-Go inspections. It’s ideal for machinists, quality inspectors, engineers, and maintenance teams who need fast, reliable verification of threaded holes to ensure proper fitment and dependable performance in assemblies. This Right Hand, 6G gauge is tailored to the common coarse-thread standard M5 x 0.8, helping you confirm parts meet the intended specifications with consistency.

• Go/No-Go inspection design: Provides quick pass/fail checks of internal threads, speeding up quality control and reducing guesswork during assembly or maintenance.
• Hardened steel construction: Built to withstand the demands of daily workshop use, delivering long-lasting durability and stable accuracy over time.
• Metric coarse thread specification: M5 x 0.8, Right Hand, 6G: Ensures compatibility with standard coarse-thread holes and reliable, repeatable checks across parts and assemblies.

This gauge helps streamline workflows by delivering clear, repeatable results and robust performance in busy environments. Rely on accurate thread verification to improve setup times, minimize rework, and maintain consistent quality across your projects.