The JBO Thread Plug Gauge is a precision tool designed to verify metric fine internal threads quickly and accurately. Its Go/No-Go design lets you confirm whether threaded holes meet exact size and fit requirements with a simple pass or fail check, streamlining setup and inspection processes.

Built for durability, this gauge uses hardened steel to deliver long-lasting performance in busy workshops. It features a right-hand orientation and is sized for M25 x 2 threads with a 6H tolerance, making it a reliable choice for engineers, machinists, quality inspectors, and shop technicians handling metric fine-thread assemblies.

• Go/No-Go quick checks: Instantly determine hole acceptance, reducing inspection time and minimizing rework during assembly.
• Hardened steel construction: Rugged and wear-resistant for reliable performance across daily use and demanding environments.
• Right-hand, M25 x 2 with 6H tolerance: Precisely matched to metric fine threads, ensuring accurate, repeatable checks for critical fittings.

Use the JBO Thread Plug Gauge to speed up quality control, improve consistency across operators, and safeguard against mismatched components. Its durable build and exact sizing help you finish projects faster with confidence, delivering dependable results in every inspection.