Benefits of Using GD&T

The language of geometric dimensioning and tolerancing can be intimidating at first, but when used properly, it can yield many advantages:

  • Standardized, international system
  • More flexibility, particularly for complex shapes
  • Allows cylindrical tolerance zones
  • Datums are clearly defined
  • Based on the fit and function of a part or assembly
  • Eliminates the need for many notes
  • Allows for more tolerance

This last benefit of GD&T is surprising to many people; they think that using GD&T will mean tighter tolerances. This concept is one of the first items covered in our GD&T Fundamentals class, using a simple, concrete example.

> More information about the GD&T Fundamentals class