The JBO Thread Plug Gauge - UNF Go-No/Go - Right Hand - 3B - No. 3 x 56 is a precision inspection tool designed to verify UNF threaded holes quickly and reliably. Built for professionals across manufacturing, automotive, aerospace, and maintenance environments, it helps ensure every threaded fit meets exact standards before parts move to the next step.

This gauge uses a go/no-go design to deliver fast pass/fail decisions, reducing inspection time and minimizing guesswork on the shop floor. Its right-hand orientation aligns with standard thread usage, while the 3B tolerance class provides consistent, repeatable measurements across operators and shifts.

• Go/No-Go UNF thread verification: Quick, decisive checks that confirm holes meet UNF specifications, helping you spot non-conformities before assembly.
• Right Hand orientation with 3B tolerance: Designed for common right-hand threads, delivering reliable engagement and accurate hole assessment across processes.
• No. 3 x 56 size: Targeted size for a widely used UNF hole range, enabling dependable measurements and smooth integration into your QC workflow.

Using this gauge streamlines quality control, speeds up inspections, and improves overall threading accuracy in your production line. It supports consistent results, reduces rework, and helps you maintain tight tolerances with confidence across different operators and jobs.