The JBO Thread Plug Gauge is a precision Go/No-Go tool designed for metric fine threads. It helps machinists, inspectors, and assembly technicians quickly verify threaded holes to ensure a proper fit. This gauge is tailored for left-hand threads and M10 x 1.25 specifications, making it a reliable addition to any quality control or assembly workflow.

• Go/No-Go quick inspection: Provides fast pass/fail checks to confirm hole tolerance—easy to use and reduces guesswork during setup and assembly.
• Durable hardened steel construction: Built to withstand daily workshop use, resisting wear and maintaining accuracy over many inspections.
• Left-Hand metric fine thread compatibility (M10 x 1.25, 6G): Precisely matches your left-hand, fine-thread requirement for reliable, repeatable gauging results.

This gauge helps streamline quality checks and assembly by delivering consistent, trustworthy measurements. With its durable build and precise sizing, it supports faster inspections, fewer reworks, and greater confidence that threaded holes meet exact specifications before components are mated.