About Us

OCG is the world’s leading manufacturer of Thread Gauges, Spline Gauges, Plain Gauges, Rok-It Gauges, Variable Gauges, and Master Gears.

Based on the South Coast of England, we service clients around the globe in the aerospace, defence, energy, infrastructure, automotive and motorsport industries, providing them with precision-engineered gauges they can trust.

By supporting these sectors, we understand that precision engineering is more than creating something innovative or groundbreaking. It’s ensuring the safety of every person who uses that machine, be they a pilot, soldier, driver or passenger. That’s why our gauges meet our industry-leading specifications to ensure that every component works the way it should and that any issues are identified before they pose a risk.

Our commitment to quality is only rivalled by our commitment to our people as we believe a happy motivated team produces superior results. 

To learn more about our team of artisans, visit our Meet the Team page. If you’re interested in joining our team then drop us a message on our contact page.