The JBO Thread Plug Gauge (NoGo) - Metric Fine is a precision tool designed to verify metric fine threaded holes. It helps engineers, inspectors, machinists, and technicians quickly determine whether a hole meets the required size and tolerance, reducing guesswork and rework. The gauge features a nominal M138 x 1.5 thread, right-hand orientation, and 6H tolerance, making it a reliable choice for high-precision assembly and quality checks.

Built to last with a hardened steel core and a knurled body for a secure grip, it stands up to repeated use in busy workshops and ensures repeatable measurements across jobs.

• Metric Fine NoGo design (M138 x 1.5, 6H): Provides a clear pass/fail indication for metric fine threaded holes, enabling quick, confident acceptance decisions and reduced inspection time.
• Hardened steel construction: Delivers exceptional wear resistance and longevity, so the gauge maintains accuracy even in demanding production environments.
• Ergonomic knurled handle for confident use: Ensures a secure grip and steady handling during inspections, helping maintain measurement consistency across operators and shifts.

With the JBO Metric Fine NoGo Thread Plug Gauge, you gain a dependable tool that accelerates quality checks, reduces rework, and supports consistent results across batches. Its robust build and precise dimensions give you the confidence that holes meet specification every time.