CRAFTSMAN 25-piece shank screwdriver bit set. This shank screwdriver bit set offers an assortment of bits for your power tool, equipping you with the right one you need for all sorts of projects. From Phillips screwdriver bits to Torx screwdriver bits, you can find a bit for all your fastening needs in this tool set. The 25-piece shank screwdriver bit set is packaged in one large case.