The JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 4h - M55 x 2 is a precision external thread gauge designed to verify that threaded components meet exact metric fine-thread specifications. It’s an essential tool for machinists, inspectors, and quality teams who need fast, reliable go/no-go checks to confirm correct thread dimensions.

Crafted from hardened steel for durability in busy workshops, this NoGo gauge resists wear and maintains accurate thread references over time. Its right-hand orientation and fine pitch make it ideal for high-precision assemblies where consistent results are critical.

• Exact NoGo sizing for reliable inspections: Provides a precise maximum material condition check for M55 x 2 fine-pitch threads, enabling quick pass/fail decisions and reducing guesswork in quality control.
• Durable hardened steel construction: Built to withstand daily use in demanding environments, maintaining tight tolerances and long tool life for consistent results.
• Ergonomic design with clear orientation: Knurled outer edge for secure grip and a visible red index mark for fast, correct placement and orientation, speeding up inspection workflow.

Equipped to integrate seamlessly into standard QC routines, this gauge helps you confirm thread compatibility, reduce downtime, and deliver reliable, repeatable results across production, maintenance, and repair tasks.