The JBO Thread Plug Gauge (NoGo) – Metric Fine is a precision inspection tool designed for metric fine-thread holes. Specifically tailored for M52 x 1.5, 4H, right-hand threads, this NoGo plug gauge provides a quick, reliable pass/fail check for quality control and assembly work. It’s ideal for machinists, inspectors, toolmakers, and production teams who need consistent hole tolerances.

• Metric Fine compatibility (M52 x 1.5, 4H, Right Hand): Delivers a definitive pass/fail check for holes that match this size and pitch, helping ensure components fit precisely and consistently.
• Durable hardened steel construction: Built to resist wear in busy workshops, preserving dimensional accuracy and extending the gauge’s service life.
• Fast go/no-go verification: Enables quick, straightforward checks without complex measurements, reducing inspection time and downtime on the line.

Using the JBO Thread Plug Gauge in your inspection routine provides clear, repeatable results you can trust. It helps streamline setup, minimize rework, and maintain consistent quality across production runs, even in demanding environments.