The JBO Thread Plug Gauge is a precision go/no-go tool designed to verify UNF threaded holes quickly and reliably. Ideal for manufacturing, automotive, aerospace, and quality-inspection environments, it helps technicians confirm that threads meet exact specifications without guesswork.

This gauge features a right-hand, 2B class specification for 1 1/8 x 12 UNF threads, allowing you to validate both the minimum and maximum limits against Unified standards. The go end signals a compliant hole, while the no-go end identifies holes that fall outside tolerance, helping you prevent misfits and rework in critical assemblies.

• Go/No-Go design for fast conformity checks: Quickly determine whether a threaded hole passes or fails, reducing inspection time and eliminating guesswork on the shop floor.
• Right-Hand, 2B UNF 1 1/8 x 12 specification: Ensures repeatable, standards-aligned measurements that match engineering drawings and manufacturing requirements.
• Rugged, ergonomic construction with color-coded ends: Knurled grip and clearly color-coded go/no-go ends enable easy handling and instant identification, minimizing setup errors during inspections.

By delivering clear pass/fail signals in a single check, the JBO Thread Plug Gauge speeds up threaded-hole inspections, reduces rework, and enhances confidence in part quality across your production line.