Magnetic Bit Holder and Nut Setter Kit, 9 pieces, Hex shank shape, Steel holder material, 1/4 in. (Magnetic Nut Setter), 1/4 in. (Magnetic Nut Setter), 1/4 in. (Magnetic Nut Setter), 1/4 in. (Magnetic Nut Setter), 5/16 in. (Magnetic Nut Setter), 5/16 in. (Magnetic Nut Setter), 5/16 in. (Magnetic Nut Setter), 5/16 in. (Magnetic Nut Setter), 3/8 in. (Mag tip size