Denali Drill Driver Accessory Set, 79-Piece Professional quality accessory set for drill owners Drill wood, plastic, concrete and metal Bits stored in 4 compact rubber-reinforced cases Features 15 titanium-coated drill bits, 6 hex-shanked wood boring bits, 8 masonry bits, 6 brad point bits, 28 screwdriving bits and 15 nut driver bits Includes durable nylon bag for easy carrying and flexible storage