The JBO Thread Plug Gauge (GO) – Metric Fine – Right Hand – 6G – M56 x 1.5 is a precision inspection tool designed to verify threaded holes quickly and reliably. It’s ideal for machinists, quality inspectors, engineers, and maintenance teams who need fast, repeatable go/no-go checks to confirm hole size and thread engagement.

Designed to exact metric dimensions, this GO gauge ensures that holes accept the intended thread every time. Crafted from hardened steel, it resists wear and maintains accuracy through demanding use in workshops, production lines, and field service environments.

• Precise M56 x 1.5 Metric Fine Go Thread: Precisely machined to the exact size and pitch, enabling fast go/no-go checks of threaded holes with consistent results.
• Hardened Steel Construction: Built to endure daily workshop use, resisting wear and preserving measurement accuracy over many inspections.
• Right-Hand, 6G Tolerance: Matched to standard hole threads for repeatable engagement and dependable inspections across tools and jigs.

Using this gauge streamlines quality control, reduces inspection time, and helps ensure reliable fits for threaded components. It supports faster setup, consistent results across production runs, and greater confidence in your threaded-hole measurements.