Nutsetter Set, Measurement System English/Imperial, Fastening Size 1/4 in, 5/16 in, 3/8 in, Tool Insertion Size 1/4 in Hex, Overall Length 2 9/16 in, Impact Rated Yes, Magnetized Tip Yes, Finish Black Oxide, Material Steel, Slide to Clean No, Number of Nutsetters Included 3, Tool Brand Irwin, Package Quantity 3