A Phillips screwdriver is a type of screwdriver that is designed to fit screws with Phillips heads, which have a cross-shaped recess. The Phillips screwdriver is mostly used in the automotive industry and is less prone to slippage than other types of screwdrivers. It is used to turn screws with more torque to achieve the desired fit. Phillips screw heads allow a tighter fit than a flat head screw, which is why most factories and handymen use them. To use a Phillips screwdriver, it is important to choose the right size for the screw to avoid damaging the screw or the tool.