The JBO Thread Plug Gauge is a precision inspection tool designed to verify internal threads in holes against UNF specifications. It’s ideal for manufacturing, automotive, aerospace, and shop environments where quick, reliable thread checks prevent misfits and rework.

Configured as a right-hand, 2B class gauge for No. 2 x 64 threads, it uses a clear go/no-go design so technicians can identify conforming and non-conforming threads at a glance, speeding setup and improving quality control.

• Go/No-Go quick verification: Two ends allow fast determination of whether internal threads meet the minimum (Go) and maximum (No-Go) limits, delivering a clear pass/fail result with minimal handling.
• UNF Right-Hand, 2B, No. 2 x 64 accuracy: Precisely machined to UNF 2B tolerances at No. 2 x 64, ensuring reliable checks that align with standard fastener sizes.
• Ergonomic dual-end gauge with secure handling: Knurled grip and balanced design provide a confident, comfortable grip in busy inspection environments, improving consistency and reducing user fatigue.

Using this gauge, your team gains confidence that threaded holes will assemble correctly the first time, reducing downtime and rework. The go/no-go verdict streamlines routine inspections, while the precise sizing ensures compatibility with standard fasteners. With durable construction and easy handling, it fits smoothly into daily QA checks and maintenance workflows.