The JBO Thread Plug Gauge (GO) is a precision inspection tool designed to quickly verify UNC threaded holes. It helps manufacturers, automotive shops, and aerospace teams confirm that holes meet standard thread specifications, reducing guesswork and ensuring proper fitment with minimal downtime.

Designed for right-hand UNC threads and a 2B tolerance, this GO plug gauge delivers reliable go/no-go results every time. Its compact 2 3/4 x 4 size and knurled, metal body provide a secure grip and easy handling in busy work environments, even when hands are oily or gloved.

• Go gauge design for fast, confident conformity: Quickly verify that threaded holes meet UNC right-hand, 2B specifications to speed inspections and prevent misfits.
• Durable knurled construction for reliable handling: Textured grip and robust metal build stand up to daily shop use, helping you place and read gauges with precision.
• Size and spec matched for common UNC threads: The 2 3/4 x 4 dimensions with 2B tolerance ensure consistent, repeatable measurements across parts and assemblies.

Using the JBO Thread Plug Gauge (GO) helps streamline quality checks, improve first-pass results, and keep production lines moving. By delivering immediate pass/fail feedback, it supports faster decision-making, reduces rework, and enhances overall accuracy in threaded-hole inspection across engineering, manufacturing, and maintenance workflows.