The JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. Specifically built for left-hand M2.5 x 0.45 applications, this Go/No-Go gauge helps technicians, engineers, and shop professionals quickly verify threaded holes for proper fit and function.

• Go/No-Go quick checks: instantly confirm whether a threaded hole meets the correct size and engagement, reducing guesswork and speeding up quality control.
• Hardened steel for durability: built to withstand busy workshop use, offering long-lasting performance and reliable measurements over time.
• Left-hand, metric coarse compatibility: precisely calibrated for M2.5 x 0.45 left-hand threads, ensuring accurate checks in specialized applications without confusion.

Designed to integrate smoothly into assembly and inspection workflows, this plug gauge delivers consistent results with minimal effort. By clearly indicating pass/fail outcomes, it helps reduce rework, protects critical tolerances, and keeps production moving efficiently.