The JBO Thread Ring Gauge (GO) – Metric Fine – Left Hand – 6g – M45 x 1 is a precision tool designed to quickly verify external thread diameters against metric fine specifications. Built for engineers, machinists, inspectors, and quality teams, it provides a straightforward go/no-go check that confirms a threaded component matches the exact size and pitch before assembly or further processing.

Crafted from hardened steel, this gauge delivers excellent durability and wear resistance for reliable use in busy workshops and production floors. Its simple, intuitive design makes it easy to identify conforming parts at a glance, helping you speed up inspections, reduce rework, and maintain consistent quality across jobs.

• Go/No-Go Precision for Metric Fine Threads: Quickly confirms that an M45 x 1 left-hand thread meets the required diameter, reducing guesswork and rework.
• Hardened Steel Construction for Long Life: Built to withstand daily use in demanding environments while preserving measurement accuracy over time.
• Left-Hand Thread Compatibility: Specifically designed for left-hand threads, ensuring accurate checks and streamlined inspection workflows.

With the JBO Thread Ring Gauge (GO), you gain faster, more reliable thread verification, helping you keep projects on schedule, minimize downtime, and achieve consistent, high-quality results across your production and quality-control processes.