The Dewalt DT71563 is a combination set of both drill and screwdriver bits. Includes bits suitable for drilling in metal, wood, plastic and masonry along with all the most common screwdriver sizes; Included in the set:- 13 x brad point wood bits (2 x 3, 3.5, 4, 4.5, 2 x 5, 5.5, 6, 6.5, 7, 7.5 and 8mm), 12 x metal drill bits (1.5, 2, 2.5, 2 x 3, 3.5, 4, 4.5, 5, 5.5, 6 and 6.5mm), 3 x masonry drill bits (6, 7 and 8mm), 2 x holesaw bits (32 and 44mm), 1 x mandrel bit, 7 x nut drivers (5, 6, 8, 10, 11, 12 and 13mm), 1 x countersink, 1 x magnetic screwdriver bit holder, 11 x 50mm screwdriver bits ((PH#1, 2 x PH#2 and PH#3), (PZ#1, 2 x PZ#2 and PZ#3) and (slotted 5, 6 and 7.2mm)), 49 x 25mm screwdriver bits ((2 x PH#1, PH#2 x PH#2, and 2 x PH#3), (slotted 4, 5 and 7.2mm), (PZ#1, 2 x PZ#2 and 2 x PZ#3), (hex 4, 5, 6 and 7) and (T15, T20, T25, T30 and T40) in a tough plastic storage case.