The Rough depth of cut is normally calculated as the tool Diameter multiplied by the Depth % attribute set on the Stepover page of Machining Attributes dialog.
The default Finish behavior is a single pass around the profile of the feature, up to the Cutter Length of the tool. This is to avoid leaving a mark on the side wall of the feature.
You can override both the Rough and Finish depth of cut in several places, from lowest to highest precedence:
- Tool level: Depth of cut attribute on the Overrides tab of the Tool Properties dialog.
- Tool level: Material-specific Depth attribute on the Feed/Speed tab of the Tool Properties dialog.
- Feature operation level: Rough/Finish pass Z increment on the Milling tab of the Feature Properties dialog.
The final depth of cut depends on whether Equal depth of cut is selected on the Misc. tab of the Feature Properties dialog.