Remember when you had the perfect bit for any job. The WEN 40-Piece Drill and Screwdriver Bit Set provide maximum versatility to any power drill or impact driver. This fully-loaded hard-shelled carrying case comes packed with 24 standard-length screwdriver bits, 7 extended-reach screwdriver bits, eight 1/4 in. hex shank drill bits and a magnetic quick-release adapter. Screwdriver bit sizes include 5 Phillips head bits (#1, #2, #3, #1 extended, #2 extended), 4 Pozidriv bits (#1, two #2, #3), 4 square bits (#1, #2, #1 extended, #2 extended), 5 slotted bits (1/8 in., 5/32 in., 3/16 in., 1/4 in., 3/16 in. extended), 4 hex bits (1/8 in., 5/32 in., 3/16 in., 1/4 in.) and 9 Torx bits (T10, T15, T20, T25, T27, T30, T40, T10 extended, T15 extended). If drilling is more your style, we still have you covered with 8 impact-resistant hex shank drill bits (1/16 in., 5/64 in., 3/32 in., 1/8 in., 9/64 in., 5/32 in., 3/16 in., and 1/4 in. Dia). The versatile 1/4 in. magnetic shanks are compatible with most standard drill chucks, quick-release chucks, and magnetic hex chucks.