Features: -It contains three different specifications of bits, slotted screwdrivers, Phillips screwdrivers and hexagonal screwdrivers, a total of 12 pieces, which largely meets your needs.-Made of vanadium steel, it has high hardness, wear resistance and rust resistance, so you don’t have to worry about deformation or aging.-Adjustable design, can be adjusted by turning the head forward and backward, when pointing to "L", the screw will be loosened, when pointing to "R", the screw will be tightened.-Mainly used to remove stubborn screws, auto parts, rusty screws and other screws that are extremely difficult to remove.-Equipped with a green iron box for storage, which can be taken anywhere, and because of the bright green color,.