Easy Out Screw Extractor Set General Precision Screwdriver Set Speed Out Stripped Screw Remover Kit for Any Sizes Broken Screw Updated HHS6542 Dual End Extracting Tool A set of screws extractor dual end including 4 kinds different sizes 3-5mm,4-8mm,5-10mm, 6-12mm, packed with small black protective case. Made of durable alloy steel (HHS6542) for extracting stripped, broken, stuck or damaged screw, usually removing the damaged screw in less than 8S. Commonly used in household,telecommunications,fixing automotive and machinery; for your safety, please wear glasses and protective garment when using it. Very easy to use, just two steps: drill the damaged screw with the drill side, then remove it with extracter side. There are different size screw removers for different problem screws, if it can't grab, just use the next size up extractor.