JBO Thread Plug Gauge – UNC Go/No-Go, Right Hand, 2B, No. 3 x 48 is a precision inspection tool designed to verify threaded holes against Unified thread standards. It’s ideal for manufacturers, automotive and aerospace teams, and general machining where accurate hole threading matters.

The go/no-go design provides fast, clear pass/fail results, enabling quick conformance checks and helping reduce downtime on production lines or in the workshop.

• Fast go/no-go verification: Quickly determine whether a hole conforms to the specification with a simple pass/fail check, speeding setup and inspections and reducing rework.
• UNC compatibility with 2B class: Precisely sized for Unified threads in Right Hand orientation, ensuring reliable fit and accurate measurement against standard thread tolerances.
• Durable, user-friendly design: Knurled grip and robust end fittings provide secure handling and long tool life in busy workshop environments.

With this gauge in your toolkit, inspectors and machinists gain confidence that threaded holes meet exact standards, improving workflow, reducing measurement guesswork, and delivering consistent results across batches. Its durable construction supports frequent use in demanding environments, helping you minimize downtime and ensure reliable fitment in every assembly.