To adjust cabinet doors, you need to use a screwdriver to turn the screws on the hinges. There are three types of adjustments: height, side-to-side, and depth. Here are the steps:

1. For height adjustment, loosen the screws on the hinge and raise or lower the door by hand.
2. For side-to-side adjustment, turn the screw on the side of the hinge to move the door closer or further from the edge of the cabinet.
3. For depth adjustment, turn the screw on the horizontal arm of the hinge to move the door inward or outward.
4. Check the alignment of the door after each adjustment and tighten the screws to secure the position.

You can use a standard Phillips-head screwdriver with a #2 screw tip for adjusting cabinet doors.