<human>:  How do use a Phillips screwdriver?
<bot>: Start by ensuring that you have a Phillips screwdriver that is the correct size for your project. 2 Insert the tip of the screwdriver into the screw head, so that the cross-shape of the tool is centered in the head of the screw. 3 Turn the screwdriver handle in a clockwise direction until the head of the screw is flush with the surface. 4 Depending on your project, you may need to keep turning the handle to secure the screw more firmly. 5 When the screw is secure, unthread the screwdriver in a counterclockwise direction to remove it.