The JBO Thread Plug Gauge is a UNEF Go-No/Go tool designed to verify internal threads with precision for 1-1/2 x 18 right-hand standards. It’s an essential instrument for manufacturers, automotive shops, and aerospace teams that need fast, reliable thread checks without disrupting workflow. The go/no-go design provides an immediate pass or fail indication, helping inspectors confirm proper fit and function in a single quick check.

• Go/No-Go Design for Quick QC Checks: Instantly identify conforming versus non-conforming threads, reducing inspection time and minimizing guesswork in quality control.
• UNEF 1-1/2 x 18 Right-Hand (2B) Precision: Precisely calibrated to the specified thread size and tolerance, ensuring accurate verification of internal threads against industry standards.
• Ergonomic, Durable Handling: Knurled body and robust end features provide secure handling and consistent readings through busy production runs and repetitive use.

Use this gauge to streamline your inspection routine, prevent costly rework, and ensure threaded components meet exact specifications. Its clear pass/fail feedback supports efficient assembly, supplier qualification, and ongoing quality assurance across machining, assembly, and maintenance workflows.