The JBO Thread Plug Gauge - UNF Go-No/Go - Right Hand - 3B - No. 12 x 28 is a precision inspection tool designed to verify threaded holes against Unified thread standards. Ideal for manufacturing, automotive, aerospace, and shop environments, this go/no-go gauge helps you quickly confirm whether threads meet exact size limits, enabling reliable assembly and reduced rework.

• Two-end Go/No-Go design: Quickly determine both the minimum and maximum thread limits with a simple pass/fail check, speeding up inspections and reducing human error.
• UNF Right-Hand, 3B size No. 12 x 28: Precisely matched to standard UNF threads, ensuring consistent, repeatable results for common hole sizes and reliable compatibility with your part specifications.
• Ergonomic, knurled handling: Built for comfortable, secure use in busy workshops, providing steady control during testing and helping you maintain accuracy even in challenging environments.

Using this gauge streamlines quality control by delivering fast, objective assessments of threaded holes. It helps your team confirm proper fitment, reduce inspection time, and maintain consistent results across parts and production runs.