The JBO Thread Plug Gauge (NoGo) in Metric Fine is a precision inspection tool designed to verify internal threads in metric fine-hole applications. It’s ideal for machinists, inspectors, and assembly teams who need quick, reliableChecks to ensure threaded holes meet exact specifications. With its NoGo designation, this gauge helps confirm that holes do not exceed the maximum size allowed by the M100 x 4, 6H specification, keeping parts consistent with engineering standards.

• Hardened steel construction for durability: Built to endure daily use in busy workshops, resisting wear and maintaining accurate measurements over time.
• Metric Fine gauge with M100 x 4, 6H specification: Precisely sized for reliable NoGo checks, helping you quickly identify out-of-tolerance holes and prevent misfits in assemblies.
• Right-hand orientation with knurled grip for easy handling: Designed for comfortable, secure use, even when wearing gloves, streamlining inspection in any workflow.

This plug gauge supports efficient quality control by delivering repeatable, trustworthy results that fit seamlessly into standard inspection routines. It helps you reduce rework and downtime, improve part conformity, and maintain consistent threading performance across production runs.