The JBO Thread Plug Gauge (GO) – Metric Fine is a precision tool designed to verify internal threads in holes and components. It’s ideal for engineers, quality inspectors, machinists, and maintenance teams who need reliable go/no-go checks to confirm threaded holes meet exact size and tolerance standards.

Made from hardened steel, this GO gauge features a metric fine thread of M60 x 4 with a 6H tolerance and a right-hand configuration. The durable construction resists wear in busy workshop environments, delivering long-lasting performance and consistent measurements for quality control and precision engineering.

• Precise metric fine thread (M60 x 4) with 6H tolerance: Enables accurate go checks on internal threads, supporting consistent acceptance criteria and reliable inspections.
• Hardened steel construction: Delivers excellent durability and wear resistance, maintaining dimensional stability over many uses in demanding environments.
• Right-hand thread design for easy use: Aligns with standard production threads and speeds up go/no-go checks, reducing guesswork and inspection time.

Using the JBO GO plug gauge streamlines your inspection workflow by quickly confirming hole acceptability, reducing rework, and improving overall quality and throughput. Its robust build and precise dimensions help you maintain tight tolerances across production runs, ensuring reliable assembly and consistent results.