Learning how to use geometric dimensioning and tolerancing (GD&T) shouldn’t be complicated or time-consuming. That’s why we started GD&T Basics - to give you the practical GD&T knowledge you need to design, manufacture, and inspect parts more efficiently.

Our ASME Certified instructors have trained 10,000 engineers, machinists, and production managers at the world’s leading manufacturers. Our pragmatic approach to GD&T saves clients countless hours, millions of dollars, and hundreds of headaches by preventing deviations, delays, and disputes.