Screwdriver

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A screwdriver, a hand tool for driving screws and sometimes bolts or other machine elements, consists of a handle, shaft, and tip. The handle and shaft facilitate positioning and torque application by rotating the handle. Screwdrivers are identified by their tips, which fit the contour of a screw's head. Using a screwdriver correctly involves ensuring that the tip matches the screw size and type. A wide range of tip shapes and sizes are available for various applications.