The JBO Thread Plug Gauge (NoGo) is a precision inspection tool designed to verify UNS right-hand threaded holes to the 2B class. Supplied as a two-piece set (2 x 12), it’s ideal for quality teams, machinists, and inspectors across manufacturing, automotive, and aerospace environments.

The No-Go design provides fast, at-a-glance identification of non-conforming threads, helping ensure proper fitment and reduce rework on the shop floor.

• No-Go quick-check design: Enables fast pass/fail verification of threaded holes, speeding inspections and preventing incorrect assemblies.
• UNS Right Hand, 2B specification: Precisely aligned with Unified thread standards to ensure accurate hole verification across common sizes.
• Two-piece set (2 x 12): Offers focused coverage for routine inspections with minimal tool changes, improving workflow efficiency.

Used in daily quality control, the JBO Thread Plug Gauge helps you confirm threaded holes meet exact specifications quickly and reliably. By delivering clear, repeatable results, it supports smoother production flows, fewer rechecks, and more confident decisions when certifying parts for use in critical systems.