Holes - Direction Definition

By default, the hole feature is created normal to the selected position. If required, you may define another direction.

Clicking on the icon switches into the axis/vector selection mode allowing you to select another direction in the graphic area, using the direction options, if required.

In the following example, the first image shows hole creation on a curved face in the default direction. In the second image, the Z direction was selected:

For further information...