Use the Tolerance section in the Dimension dialog to add or change tolerances for individual dimensions.
In the canvas, double-click a dimension.
The Dimension dialog displays.
In the Dimension dialog, expand the Tolerance section, and select the checkbox to enable the settings.
For the Type, select one of the following:
Symmetrical
Deviation
Limit
Fit
For Symmetrical, select or type a Tolerance value.
For Deviation or Limit, select or type Upper Tolerance and Lower Tolerance values.
For Fit:
Click Close.