The JBO Thread Plug Gauge (GO) is a precision inspection tool engineered to verify threaded holes meet UNC standards. It’s an essential asset for manufacturing floors, automotive shops, and aerospace QA teams that rely on quick, reliable go checks to confirm hole readiness and proper fit with the mating bolt.

• Precise UNC 2B Go Verification: Confirms that threaded holes meet the Unified Thread Standard for right-hand threads in the 2 1/4 x 4.5 size, helping reduce misfits and rework in production and assembly.
• Ergonomic, Knurled Body for Fast Handling: The textured grip provides secure, comfortable handling and easy alignment, even when gloves are in use, speeding inspections on busy shop floors.
• Durable, Reliable Geometry: Built to withstand daily use in demanding environments, delivering consistent go checks across lots and batches for dependable quality control.

Using this GO gauge supports efficient quality assurance by quickly validating hole readiness, improving workflow, and reducing downstream fitting issues. It helps you move parts through inspection with confidence, maintain tighter process control, and achieve more consistent, reliable results across production runs.