Cut Extrude with Direction of Extrusion

If you want to make the Cut Extrude command to the slope as the example picture above, the steps are;

1. Create a sketch like the image below for cutter tool

2. Choose Insert > Cut > Extrude
3. On Feature Manager under Direction 1, set End Condition at Through All and at Direction of Extrusion, select edge of part

4. Then exit sketch