
Select coordinate system - Sets a specific tool orientation for this operation from an Inventor User Coordinate System (UCS) in the model.

Both the X and Y axes can be flipped 180 degrees. Select X & Y axes - Select a face or an edge to define the X axis and another face or edge to define the Y axis.Both the Z and Y axes can be flipped 180 degrees. Select Z axis/plane & Y axis - Select a face or an edge to define the Z axis and another face or edge to define the Y axis.Both the Z and X axes can be flipped 180 degrees. Select Z axis/plane & X axis - Select a face or an edge to define the Z axis and another face or edge to define the X axis.Model orientation - Uses the coordinate system (WCS) of the current part for the tool orientation.Setup WCS orientation - Uses the workpiece coordinate system (WCS) of the current setup for the tool orientation.

Orientation drop-down menu provides the following options to set the orientation of the X, Y, and Z triad axes: Specifies how the tool orientation is to be determined using a combination of triad orientation and origin options.
