The JBO Thread Plug Gauge (GO) - Metric Fine - Left Hand - 6H - M45 x 2 is a precision go gauge designed to verify internal threads in machined parts. It’s built for left-hand metric fine threads and provides fast, reliable Go checks to confirm threaded holes will accept the intended fasteners. Ideal for quality control, manufacturing, and maintenance tasks, it helps teams quickly determine hole readiness during setup, inspection, and assembly.

Crafted from hardened steel for durability, this gauge resists wear and maintains accurate dimensions even in demanding workloads. The left-hand (LH) configuration ensures accurate testing of LH threaded holes, delivering dependable performance across busy workshops and diverse industries.

• Accurate Metric Fine LH M45x2 GO Gauge: Precisely sized to the M45 x 2 left-hand metric fine thread, enabling quick, reliable GO checks and consistent hole acceptance.
• Hardened Steel Construction: Built to resist wear and deformation, delivering long tool life and reducing replacement needs in high-volume inspection environments.
• Easy‑to‑Use Go Gauge for Quick QC: Clear identification of properly threaded holes supports fast setup and streamlined inspections, minimizing downtime and guesswork.

Using this gauge helps inspectors and technicians validate thread quality across the production process, improve mating accuracy, and maintain high standards of consistency. It supports efficient quality control workflows, reduces rework, and enhances overall manufacturing performance.