General description This 26-piece anti-theft bolt extractor set is designed for removing damaged screws, nuts, and bolts. Made from durable chrome-molybdenum (Cr-Mo) steel, this tool is essential for any DIY enthusiast or professional looking to tackle tough extraction jobs. The set includes various sizes of screw extractors and drill bits to accommodate a wide range of applications. Technical specifications Material: Chrome-molybdenum steel Screw extractor sizes: 1/4" - 5/16" (8 mm), 3/8" (10 mm), 7/16" (11 mm), 12 mm, 1/2" (13 mm), 9/16" (14 mm), 5/8" (16 mm), 17 mm, 11/16", 3/4" (19 mm) Drill sizes: 3/32", 1/8", 5/32", 1/4", 9/32", 3/8" Drive size: 3/8" Number of pieces: 26 Usage This tool is ideal for loosening screws, nuts, and bolts, even when the receiver thread or hexagon is damaged. It is important to note that some abrasion may occur during the extraction process. To prolong the life of the tool, it is recommended not to use the same hexagon socket repeatedly for screws,