A screw extractor is a specialized tool designed to remove broken or damaged screws that cannot be easily unscrewed with a regular screwdriver. It typically features a tapered, spiral design that grips the screw as it is turned counterclockwise, allowing for extraction without damaging the surrounding material. These tools come in various sizes to accommodate different screw types and sizes. Using a screw extractor often involves drilling a small hole into the broken screw, inserting the extractor, and then turning it to remove the screw. Proper technique is essential to avoid further damage to the workpiece.