The JBO Thread Plug Gauge is a precision tool for metric fine threads, designed to quickly verify internal thread holes and ensure mating parts fit correctly. It’s suitable for engineers, buyers, tradespeople, hobbyists, and non-technical users who need a reliable, straightforward way to validate thread quality before assembly. This Right Hand gauge features M15 x 1 fine-thread size and a Go/No-Go design that makes quick checks fast and repeatable. The gauge is built from hardened steel for long-lasting wear and dependable performance in demanding workshop environments.

• Go/No-Go design for fast, confident checks: Quickly determine whether internal threads are within tolerance, reducing inspection time and guesswork.
• Hardened steel construction for durability: Built to resist wear and maintain accuracy through heavy daily use and repeated measurements.
• Metric fine-thread compatibility: M15 x 1, right-hand, 6G: Sized for common metric fine-thread holes, delivering consistent, repeatable results across parts and assemblies.

This plug gauge helps streamline quality control by providing clear pass/fail results on threaded holes, supporting faster assembly, fewer rework cycles, and more reliable mating components across production runs.