The JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6h - M20 x 2.5 is a precision tool designed to verify external thread diameters against established metric standards. It’s ideal for quality control professionals, machinists, inspectors, and assembly teams who need fast, reliable pass/fail checks on metric coarse thread sizes.

Crafted from hardened steel, this NoGo gauge delivers durability in demanding workshops while maintaining stable accuracy over time, even with frequent use.

• Accurate NoGo verification for reliable pass/fail checks: Quickly confirm that external threads exceed the NoGo limit and meet the M20 x 2.5, 6h specification, helping prevent incompatible parts from moving to the next stage.
• Rugged hardened steel construction: Built to resist wear, corrosion, and shock, ensuring long service life and stable measurements in tough shop environments.
• User-friendly design for fast inspections: Smooth threading and clear, easy-to-read markings enable quick insertion, simple reading, and repeatable results with minimal setup.

Using the JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6h - M20 x 2.5 helps you streamline quality control, reduce rework, and protect fitment accuracy across production runs. It empowers technicians to quickly identify non-conforming parts, prevents costly assembly issues, and sustains consistent results from batch to batch. With its durable build and straightforward operation, this gauge supports efficient workflows in machining, automotive, and industrial settings, delivering dependable performance when it matters most.