The JBO Thread Plug Gauge is a precision inspection tool designed to verify UNEF threaded holes quickly and reliably. Sized for a right-hand, 2B class thread at 11/16 x 24, this gauge uses a go/no-go design to confirm whether a hole meets Unified thread standards, helping you ensure proper fit and function in critical assemblies.

Designed for engineers, machinists, quality inspectors, and shop technicians, this gauge streamlines threaded-hole inspection across manufacturing, automotive, and aerospace environments. Its simple, repeatable checks reduce guesswork and speed up quality control without compromising accuracy.

• Go/No-Go quick-check: Delivers fast, unambiguous acceptance testing for each hole, so you can decide at a glance whether a thread conforms or needs rework.
• Precisely sized UNEF 2B 11/16 x 24 right-hand thread: Ensures accurate, reliable checks against the exact thread class and size required for proper engagement and fit.
• Ergonomic, durable construction: Knurled grip and robust materials provide secure handling and long service life in busy workshop environments.

This plug gauge helps you improve workflow, reduce downtime, and achieve consistent results across teams and shifts, giving you confidence in every threaded- hole measurement.