Features Excellent Durability The screw extractor is made of impact resistant CR MO steel (chrome molybdenum steel) and HSS material, which provides excellent durability and corrosion resistance and is not easily damaged. REMOVING DAMAGED SCREWS The bolt extractor is used to remove damaged screws, whether working on wood or metal. Precise Design The accuracy of the beveled edge of each left drill bit is designed to help remove damaged studs, bolts, hex socket screws and connections faster. MULTIPLE SIZES Left handed drill bits for sizes 19/64", 1/4", 3/16", 5/32", 1/8". Screwdrivers include 1#, 2#, 3#, 4#, 5#. Impact drives for a variety of operational applications. EASY TO CARRY Put the screw extractor into a plastic sleeve for easy storage. You can take it anywhere in the world, be it for car repairs or for daily use as a screw remover, giving you great convenience. Specification: Item Type:Screwdriver Material: CR MO and HSS Package list: 5 x screwdrivers. 5 x left-handed drills. 1 x storage box Package List 5 x Screw Extractor 5 x Left Hand Drill Bit 1 x Storage Box