The JBO Thread Ring Gauge (GO) - Metric Fine is a precision tool designed to verify external thread diameters on fasteners, fittings, and threaded components. Built for right-hand metric fine threads, it helps inspectors, machinists, and quality teams quickly confirm whether a part meets the M40 x 2 standard and the 6h tolerance. Ideal for both professional shops and in-house quality labs, it delivers fast, reliable go/no-go readings that support consistent product quality.

Crafted from hardened steel, this gauge delivers enduring durability and wear resistance to stand up to daily use in demanding environments. Its compact, user-friendly design enables smooth insertion and clear identification of conforming parts, helping streamline your inspection workflow without sacrificing accuracy.

• Fast go/no-go inspection: Quickly determine if an external thread matches the metric fine M40 x 2, right-hand thread, and the 6h tolerance, enabling on-the-spot decisions and reduced inspection time.
• Rugged hardened steel construction: Built to endure daily handling and wear, delivering long tool life and consistent readings in busy workshops.
• Precisely matched to metric fine threading: Specifically sized for M40 x 2 right-hand threads, ensuring reliable measurements that integrate seamlessly with standard production and quality processes.

Using the JBO Ring Gauge GO, you can improve workflow efficiency, shorten inspection cycles, and achieve repeatable results that bolster overall manufacturing performance. Trustworthy, straightforward, and designed for dependable results, it’s a reliable addition to any precision-focused toolkit.