The JBO Thread Plug Gauge (GO) is a precision go gauge for verifying internal threads in metric holes. Designed for machinists, inspectors, engineers, and maintenance teams, it confirms proper engagement of M142 x 1.5 metric fine threads with a right-hand orientation (6H).

• Accurate GO Gauge for M142 x 1.5 Metric Fine Threads: Provides a definitive pass/fail indication for the hole’s internal thread, enabling quick, reliable inspections and reducing guesswork during assembly.
• Hardened Steel Construction for Long-Lasting Performance: Resists wear and maintains calibration through repeated use in demanding workshop environments, delivering a durable, long tool life.
• Fast, Unambiguous Verification for Right-Hand 6H Threads: Engineered for quick, intuitive checks—easy to insert and read—supporting efficient quality control and consistent results across parts.

With the JBO Thread Plug Gauge (GO), you gain confidence that every threaded hole meets the required standard before assembly. This reduces rework, minimizes downtime, and supports consistent, high-quality results across production runs. The combination of precise metric fine threading, robust materials, and a user-friendly design makes it a dependable reliability tool for manufacturing, machining, and maintenance teams.