The JBO Thread Plug Gauge is a compact UNJF Go-No-Go tool designed for quick, dependable threaded-hole inspections. It’s ideal for manufacturers, automotive shops, and aerospace QA teams who need fast confirmation that a hole meets Unified thread standards without lengthy measurements or guesswork.

Built for reliable performance in busy environments, this right-hand gauge features precise dimensions and a robust construction that stands up to regular use. The Go-No-Go design makes it easy to identify conforming vs. non-conforming threads at a glance, helping you keep assemblies moving smoothly and accurately.

• Go/No-Go quick verification: rapidly determine whether a hole’s thread meets spec, speeding up inspections and reducing rework by providing a clear pass/fail result.
• UNJF 3B, 3/4 x 16, Right Hand accuracy: precisely matched to the UNJF thread standard, ensuring reliable checks for correct size and orientation with confidence in mating parts.
• Durable, ergonomic construction: rugged, knurled body and solid fittings provide secure handling and lasting performance in everyday shop conditions.

This gauge helps streamline quality control, improve part fit, and support consistent results across audits and productions. With its straightforward, durable design, you can trust it to deliver repeatable checks that keep your workflow efficient and your assemblies dependable.