General description This 11-piece screw extractor set is designed for removing damaged bolts, nuts, and screws, including those that are rusted or chipped. Made from high-hardness, heat-treated chrome-molybdenum steel with a black oxide coating, this set ensures strength and durability. It is suitable for both professional and occasional use, making it an essential tool for any mechanic. Technical specifications Material: Chrome-molybdenum steel Number of pieces: 11 Screw extractor sizes: 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 19 mm Lever length: 9 cm Box dimensions: 14 x 10 x 3.5 cm (length x width x height) Compatibility and accessories Compatible with 3/8-inch screwdrivers Includes a sturdy carry case for safe and tidy storage Usage Can be used with open-end wrenches, pliers, adjustable wrenches, and socket wrenches Designed to provide excellent grip when removing damaged bolts and nuts Other information