The JBO Thread Plug Gauge (GO) – Metric Fine, Right Hand, 6H, M150 x 4 – is a precision inspection tool designed to verify threaded holes quickly and reliably. Crafted from hardened steel for durability, this GO gauge helps engineers, machinists, inspectors, and hobbyists confirm that internal threads meet the M150 x 4, 6H standard with consistent go/no-go results.

• Metric fine GO gauge for M150 x 4, 6H: Delivers precise go/no-go checks for common metric threads, ensuring holes accept the gauge only when within spec.
• Hardened steel construction: Built to withstand daily shop wear, providing long life and stable measurements even in tough environments.
• Right-hand orientation for reliable compatibility: Designed to match standard right-hand threaded holes, enabling quick, consistent identification of properly threaded components.

The gauge simplifies quality control by delivering fast, repeatable checks that reduce inspection time and minimize guesswork. With a durable construction and clear pass/fail results, you can set up workflows with confidence, improve first-pass yields, and extend the life of your measurement program.