The JBO Thread Ring Gauge (NoGo) – Metric Fine, Right Hand, 6g, M2.5 x 0.25 is a precise inspection tool designed to verify external thread dimensions. Made for machinists, quality engineers, and shop-floor teams, it provides a straightforward go/no-go test to confirm that fine-thread components meet the specified tolerances without guesswork.

Designed specifically for metric fine threads, this NoGo gauge helps you quickly determine if a component’s external threads exceed the maximum material limit, preventing improper assemblies and costly rework.

• Precise NoGo check for metric fine external threads: Quickly confirms that M2.5 x 0.25 right-hand threads in the 6g class stay within the maximum material limit, delivering fast pass/fail results on the shop floor.
• Rugged hardened steel construction: Built to resist wear and corrosion in busy workshop environments, ensuring stable, long-lasting measurement accuracy over many cycles.
• User-friendly, compact ring gauge design: Easy to handle, align, and integrate into existing inspection routines, helping reduce inspection time and downtime.

Using this gauge simplifies quality control, speeds up thread inspections, and supports consistent results across parts. It helps ensure reliable thread mating, minimizes rework, and improves overall workflow in manufacturing and precision assembly contexts.