The JBO Thread Ring Gauge (NoGo) for metric coarse threads is a precision inspection tool designed to verify external thread size quickly and reliably. Sized for M30 x 3.5 and configured for left-hand applications, this NoGo gauge helps technicians confirm that threaded components meet the required limits with minimal effort.

Manufactured from hardened steel for durability, it resists wear in demanding environments and maintains measurement accuracy over time. The clear NoGo indication supports fast identification of non-conforming parts, making it a dependable addition to quality control, precision engineering, and assembly workflows.

• NoGo verification for M30 x 3.5 metric coarse threads: Quickly confirms that external threads do not exceed the maximum diameter, enabling fast pass/fail decisions and consistent thread quality.
• Hardened steel construction: Built to withstand daily use in busy workshops, delivering durable measurements and long tool life.
• Left-hand, 6g tolerance class: Specifically engineered for left-hand coarse threads, ensuring correct form and reliable readings across production lots.

Using this gauge streamlines quality control by delivering fast, repeatable checks, reducing downtime and rework, and helping your team achieve reliable thread fitment every time. Its rugged build and straightforward use inspire confidence in inspectors, machinists, and buyers alike, making it a dependable companion in manufacturing, maintenance, and assembly environments.