25 Different Sizes: This screw extractor set includes both metric and imperial sizes to fit any situation. Hex Head Design: The hex head allows for maximum torque application with sockets and socket wrenches for easy screw and bolt removal. Left-Hand Spiral Design: The left-handed spiral grooves provide extra grip and allow for faster threading to easily remove broken or rusted screws, bolts, nuts, threaded rods, fittings, threaded pipes, and cotter pins. High Quality Material: Made of Made of high-strength steel, this screw extractor is sturdy and durable, providing maximum protection against rust and corrosion for extended use. Versatile Use: Comes with a convenient case for easy carrying and storage, this screw extractor is easy to use for extracting rusty screws and bolts that spin freely. Suitable for all carpenters, DIY enthusiasts, homeowners, mechanics, artists, etc.