The JBO Thread Plug Gauge is a precision Go/No-Go tool designed for metric fine threading. Sized for M6.5 x 0.5 right-hand threads, this gauge is ideal for engineers, machinists, buyers, and hobbyists who need fast, reliable hole-thread verification.

The gauge features a durable, hardened steel construction and a knurled central body for a secure grip, with threaded ends that let you perform Go/No-Go checks efficiently.

• Go/No-Go design for fast, conclusive checks: Quickly verify hole threads meet spec with clear pass/fail cues, reducing inspection time and guesswork.
• Metric fine thread focus: M6.5 x 0.5 right-hand threads: Precisely matched for common metric fine-thread holes, supporting accurate assembly and quality control.
• Hardened steel construction for durability: Withstands daily use in busy shops, resisting wear and maintaining accurate tolerance over the life of the tool.

This plug gauge helps you streamline inspection, cut setup time, and safeguard fit between components by confirming thread form and size with reliability. With its durable build and targeted metric fine-thread accuracy, you gain consistent results across batches, fewer reworks, and confident purchasing and production decisions.