The JBO Thread Ring Gauge (NoGo) is a metric fine, left-hand thread gauge sized M75 x 1.5 with a 6g tolerance class. It is a precision inspection tool designed to verify external thread diameters on shafts, fittings, and other threaded components, helping ensure parts meet the required metric standards.

Crafted from hardened steel for durability, this NoGo gauge resists wear in busy workshops and holds its accuracy over time. The ring-style design enables quick pass/fail checks, and the left-hand orientation covers reverse-thread configurations often found in specialized equipment. Use it in quality control, incoming inspection, or during assembly to keep threaded connections reliable.

• NoGo Verification for Metric Fine Threads: Quickly confirms that an external thread diameter does not exceed the maximum limit, enabling fast, clear pass/fail decisions and reducing rework.
• Durable Hardened Steel Construction: Built to withstand daily use in demanding environments, delivering long service life and consistent performance.
• Left-Hand Thread Compatibility: Specifically designed for left-hand thread components with M75 x 1.5 pitch, ensuring accurate measurements across common reverse-thread applications.

By using this gauge, you streamline inspection workflows, reduce guesswork, and improve the reliability of threaded assemblies. It supports faster quality decisions, minimizes downtime, and helps you maintain consistent results across batches and production runs.