A screwdriver is a piece of equipment designed to tighten the screw or unscrew the screw with a screwdriver with general assembly.metal tip to use for securing screw which has different shapes and sizes to be used on different types of screws and handle bars for cylinder-like, on the other side for a cross over with his hand or a screwdriver some may turn to a motor.(torque) from the roll to the end, turn the screw in accordance with the twisted into or out of any other material
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