Adding Geometric Tolerances
Geometric tolerancing shows deviations of form, profile, orientation, location, and runout of a feature. You add geometric tolerances in feature control frames. These frames contain all the tolerance information for a single dimension.
You can copy, move, erase, scale, and rotate feature control frames. You can snap to them using the object snap modes. You can use DDEDIT to edit feature control frames, or you can edit them with grips.