The JBO Thread Plug Gauge (NoGo) - Metric Fine is a precision inspection tool designed to verify metric fine threaded holes. Specifically configured for left-handed M42 x 1 threads and 6H tolerance, this NoGo gauge helps you quickly confirm holes meet the required size limits during quality checks.

Constructed from hardened steel, this plug gauge resists wear and stands up to daily use in demanding workshop environments, delivering reliable performance over time.

• Metric Fine NoGo gauge for M42 x 1 (6H): Quickly verify threaded holes meet the maximum allowed size, enabling consistent pass/fail checks in quality control.
• Left-hand thread compatibility: Designed for left-handed threads, ensuring correct orientation and reliable measurements in suitable assemblies.
• Hardened steel construction: Durable, wear-resistant material that maintains accuracy and extends tool life in busy work environments.

With its precise dimensions and robust build, the JBO Metric Fine NoGo plug gauge streamlines inspection workflows. It reduces downtime by providing fast, repeatable checks that help you avoid assembly issues and rework, while delivering the confidence that your threaded holes conform to M42 x 1 and 6H specifications.