A screw extractor is a specialized tool designed to remove broken or damaged screws. It typically features a tapered, spiral design that grips the screw as it is turned counterclockwise. This allows the extractor to engage with the screw and help pull it out of the material it is embedded in. Using a screw extractor usually involves drilling a small hole into the center of the broken screw, then inserting the extractor into that hole. As the extractor is turned, it bites into the screw, allowing for easy removal without damaging the surrounding material.