1. Material A4 carbon steel: The extractor set is crafted from quality A4 carbon steel, undergoes complete heat treatment, and boasts hardness and exceptional wear resistance. This enables it to effortlessly grip and remove stuck screws or threaded pipes. Its finely serrated, nonslip design ensures a firm hold on screws, allowing easy removal without damaging the original hole. 2. Multisize set: The set includes 6 different sizes of screw extractors, suitable for screws with diameters ranging from 4–25 mm. Whether disassembling pipes or performing professional screw repairs for various thread sizes, it meets diverse needs in home repairs, automotive maintenance, mechanical processing, and more. 3. Unique square design: This professional lefthand turn set features an innovative square design, compatible with wrenches and impact drills for easy support and power application. Paired with the ergonomic rotating handle, it enables quick and effortless removal of broken screws, bolts, and studs. 4. Wide range of applications: This broken pipe and screw removal tool is specially designed for handling damaged screws, bolts, and pipes. Whether dealing with rusty, stripped, or broken screws, it tackles the task with ease, making it an essential tool for both DIY enthusiasts and professional repairers.