The JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. It provides quick go/no-go checks of threaded holes, helping assemblies fit together with confidence.

Designed for right-hand M5 x 0.5 threads with a 6H tolerance, the gauge features a hardened steel body for long service life in busy shops. A knurled grip ensures secure handling during setup and inspection.

• Go/No-Go Quick Checks: Quickly verify that the hole thread meets the 6H tolerance for M5 x 0.5, speeding up quality inspections and reducing rework.
• Robust Hardened Steel Construction: Built to resist wear and maintain accuracy even with heavy daily use in demanding workshop environments.
• Right-Hand Metric Fine Thread Compatibility: Precisely matched to standard M5 x 0.5 fine-thread holes, providing reliable, repeatable results across parts and assemblies.

Using this gauge simplifies your threading quality workflow, helping you verify fit before assembly, cut downtime, and deliver consistent results across projects. Its durable construction and precise design give teams confidence that every threaded hole will accept the intended fastener, every time.