#### Axes

The Axes drop-down list provides you with a list of available axes, to which you can apply plus and / or minus tolerances. The list contains the following:

ALL | All the axes and options displayed in the drop down list
D1 | Diameter /Width of the first datum
D2 | Diameter/Width of the second datum
D3 | Diameter/Width of the third datum
DF | Diameter/Width of the feature
LF | Length of the feature if the feature is a slot
WF | Width of the feature if the feature is a slot
LD | Length of the datum if the datum is a slot
WD | Width of the datum if the datum is a slot
TP | True position tolerance and its associated deviation
FORM | The integrated form dimension for the feature.

- For a circle or cylinder feature, this is the Roundness (RN) dimension.

- For a plane feature this is the Flatness (FL) dimension.

- For a line feature this is the Straightness (ST) dimension.