The JBO Thread Plug Gauge is a precision instrument engineered for metric fine threads, designed for professionals and shops that demand exact hole tolerances. This Right Hand, 6G-class gauge targets M40 x 1.5 fine-thread holes and uses a Go/No-Go design for fast, reliable inspection of fit and assembly.

• Go/No-Go design for fast verification: Quickly confirm that a threaded hole meets the specified limits, reducing guesswork and rework so assemblies go together smoothly.
• Metric fine-thread compatibility (M40 x 1.5, Right Hand): Precisely checks the intended fine-thread size and direction to ensure correct mating with the corresponding fasteners and components.
• Hardened steel, durable construction: Built to withstand regular use in inspection and production environments, maintaining accuracy and resisting wear for long service life.

This gauge helps you streamline quality checks, cut downtime, and ensure reliable, repeatable results across assemblies that rely on fine metric threads. With its robust construction and precise Go/No-Go action, you can trust it to deliver consistent performance in busy workshops, QA labs, or field service.