The JBO Thread Plug Gauge (GO) UNC Right Hand 2B, 2 x 4.5 is a precision inspection tool designed to verify internal threads in holes across manufacturing environments—from assembly lines to aerospace workshops. It’s built for professionals who need quick, reliable checks to ensure threaded components meet Unified thread standards, with a Go-style interface that supports efficient quality control.

• Go/No-Go design for fast conformance: Quickly determine whether a threaded hole meets spec with an unmistakable pass/fail indication, and use the built-in no-go feature to identify out-of-tolerance threads without guesswork.
• 2B tolerance for reliable results: Calibrated to the 2B class, delivering consistent measurements across parts and production lots to reduce rework and ensure uniform fitment in assemblies.
• Ergonomic, knurled grip for easy use: The knurled body provides a secure, comfortable grip and precise handling in busy work environments, improving inspection speed and accuracy.

Designed for inspectors, machinists, and quality teams, this Go gauge supports faster threaded-hole verification, lowers downtime, and helps ensure that assemblies with UNC threads go together smoothly and reliably. Its focused, representative design makes it a trusted tool for maintaining consistent thread quality and verification across production runs.