The JBO Thread Plug Gauge is a precision Go/No-Go gauge designed for metric fine threads. Engineered for M6 x 0.5 right-hand threads in the 6G class, it lets you quickly verify hole threads and confirm proper fit for mating components.

Ideal for machine shops, assembly lines, maintenance teams, and hobbyist workshops alike, this gauge speeds up quality checks without sacrificing accuracy—so you can keep production moving with confidence.

• Go/No-Go ends for rapid thread verification: A quick pass/fail check lets you confirm holes meet the M6 x 0.5 tolerance and prevent misfits in minutes.
• Durable hardened steel construction: Built to withstand daily use, resisting wear and maintaining dimensional accuracy over thousands of inspections.
• Standard metric fine-thread compatibility (M6 x 0.5, 6G): Precisely matched to common metric fine threads, ensuring reliable results in right-hand thread applications.

With this gauge, you’ll streamline threaded-hole inspection, reduce rework, and improve assembly accuracy across your production or repair workflow. Its sturdy build and clear go/no-go feedback help you move from measurement to action faster, delivering consistent results and peace of mind in every job.