The JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. This right-hand gauge checks internal threads for M1.6 x 0.35 coarse pitch, helping you verify that threaded holes will accept components with the correct fit.

Built for busy workshops, the gauge features a durable hardened steel body with an ergonomic knurled grip for confident handling. Its go/no-go design delivers fast, unmistakable pass/fail checks, so you can keep production moving and minimize rework.

• Go/No-Go Quick-Check: Quickly verify whether the threaded hole falls inside the required tolerance, enabling fast, unambiguous inspections and reduced downtime.
• Metric Coarse Right-Hand Thread (M1.6 x 0.35): Specifically tuned for common metric coarse threads, ensuring reliable engagement and consistent measurements across parts.
• Durable Hardened Steel Construction: Built to withstand daily use in demanding environments, providing long tool life and stable, repeatable readings.

Using this gauge helps ensure the correct thread fit, reduces downtime due to mismatches, and strengthens quality control across manufacturing or repair workflows. It supports faster acceptance testing, minimizes scrap, and delivers reliable results that teams can trust.