The JBO Thread Ring Gauge (NoGo) – Metric Fine, Right Hand, 6h, M55 x 1.5 is a precision tool designed to check external thread diameters on fasteners and mating components. It provides a reliable NoGo reference for quality teams and machining operations to quickly verify that threads conform to the M55 x 1.5 standard.

Manufactured from hardened steel, this gauge offers durable, wear-resistant performance in busy workshops, delivering consistent measurements through heavy use and challenging environments.

• NoGo accuracy for quick pass/fail checks: Enables fast verification of external thread diameters against the NoGo limit, helping identify undersized or oversized parts at a glance during inspection.
• Hardened steel construction for durability: Built to withstand daily use in demanding settings, resisting wear and preserving precision over time.
• Metric Fine, M55 x 1.5, Right-Hand design: Specifically tuned for metric fine threads with right-hand orientation and 6h tolerance, ensuring reliable, repeatable measurements across standard fasteners.

Using the JBO NoGo thread ring gauge streamlines quality control, reduces guesswork, and supports consistent, compliant threaded assemblies. It helps shorten inspection cycles, minimize rework, and boost confidence in parts before they reach final assembly or shipment.