The JBO Thread Plug Gauge is a precision Go/No-Go tool designed for metric fine threads. Built for M18 x 2 right-hand threads with a 6H tolerance, it helps machinists, engineers, and quality inspectors quickly verify that threaded holes meet exact specifications without guesswork.

Constructed with hardened steel and a textured knurled body for secure handling, this plug gauge delivers dependable performance in busy workshop environments. Its Go/No-Go design lets you perform fast, decisive checks on internal threads, ensuring parts fit together smoothly and reliably.

• Go/No-Go quick check: rapidly verify hole acceptance with a single pass, speeding up inspections and reducing guesswork during assembly.
• Hardened steel durability: rugged construction withstands daily use, resist wear, and maintain accuracy over time.
• Metric fine thread precision (M18 x 2, right-hand, 6H): engineered for exacting metric standards, delivering consistent, reliable gauging for critical applications.

Using the JBO Thread Plug Gauge helps streamline quality control, minimize rework, and improve overall workflow. By delivering clear Go/No-Go results, it supports faster part mating, higher first-pass yield, and greater confidence in your threaded assemblies.