A screwdriver is a hand tool or powered device designed primarily for the insertion and removal of screws. It consists of a handle and a shaft, culminating in a tip that is shaped to fit into the head of a specific type of screw. The handle is usually made of plastic, wood, or rubber and is ergonomically designed to allow the user to apply torque comfortably and efficiently. The shaft, typically made of hardened steel, provides the strength needed to transfer the user's applied force to the screw.
