8-piece screw extractor set, forged from premium carbon steel, heat-treated, rust-proof, and sturdy. The damaged screw extractors can easily remove damaged screws, bolts, and water pipes, and can be used to remove most types of damaged, torn, rusted, broken, or fixed screws with ease from any wood or metal surface. Ideal screw removal tool for home use and professional electricians. Designed with deep and wide threads, long service life. Can be used in combination with an electric drill. All tools are packed in a carrying bag, making them easy to carry and store.