Milwaukee 4-PC M2 Steel Screw Extractor Set features a double-ended bit design that provides versatility and efficiency. Side A is engineered for high-speed drilling in reverse, while Side B is optimized for low-speed extraction in reverse. This set delivers a comprehensive solution for removing stripped screws and rounded bolts with ease. Crafted from durable M2 steel, these extractors are built to last and perform reliably. Designed for use in drill drivers operating in reverse, the set is capable of extracting screws ranging from No. 4 to No. 24, as well as bolts sized No. 10, 1/4", 5/16", and 3/8". This makes it an essential tool for any professional or DIY toolbox. Model Number: 49-57-9001