The JBO Thread Plug Gauge (GO) is a precision tool designed to quickly verify threaded holes meet metric fine thread standards. Specifically configured as a GO gauge for fast go/no-go checks, it’s ideal for machinists, inspectors, quality control teams, and maintenance technicians who need reliable hole acceptance in manufacturing, assembly, and repair work. This model is Right Hand and 6H, sized for M148 x 2, ensuring accurate, repeatable results in demanding environments.

Crafted from hardened steel, the gauge resists wear for lasting performance and maintains tight tolerances through heavy use. Its knurled body provides a secure grip, making handling confident and comfortable even when wearing gloves.

• Hardened steel construction: Delivers long-lasting durability and wear resistance for everyday inspection tasks in busy shop environments.
• Precise metric fine GO verification: Engineered to the metric fine standard (M148 x 2) with 6H class tolerances, enabling quick, reliable go/no-go checks and clear pass/fail decisions.
• Ergonomic, knurled grip for secure handling: The textured surface ensures a secure hold and easy identification on the bench or in glove use, speeding up setup and inspections.

This GO plug gauge supports streamlined quality control workflows by delivering consistent results, reducing guesswork, and helping you approve or reject threaded holes with confidence. Its durable build and precise dimensions translate to fewer re-inspections and smoother production cycles, making it a dependable addition to any precision manufacturing or maintenance toolkit.