The JBO Thread Plug Gauge is a precision tool for verifying metric fine threads in threaded holes. Specifically calibrated for M4.5 x 0.35 right-hand threads with a 6H tolerance, this Go/No-Go gauge enables fast, reliable checks during setup and quality control.

• Go/No-Go quick hole verification: Instant pass/fail feedback for M4.5 x 0.35 right-hand threads, speeding setup and quality checks without removing parts or guesswork.
• Hardened steel construction: Built to resist wear and maintain accuracy through heavy, daily use for reliable long-term service.
• Metric fine thread specificity (6H, Right Hand): Precisely calibrated to the 6H class for M4.5 x 0.35 right-hand threads, ensuring consistent measurements across parts and assemblies.

With the JBO Thread Plug Gauge, you gain confidence in hole quality, faster inspections, and repeatable results that improve overall manufacturing workflow. Its robust construction and precise calibration help you avoid misfits and rework, delivering reliable performance in production and repair environments.