Black & Decker 30-Piece Drill and Screwdriver Accessory Set Perfect for drilling and driving in masonry, wood and metal, this comprehensive set is great for getting started on household DIY. It comes complete with 30 drill and screwdriver bits, all stored in a hardwearing case with flip-out bar for easy access. Includes 8 x titanium HSS drill bits, , 11 x screwdriver bits, 5 x Brad point wood drill bits, 4 x masonry drill bits, 1 x countersink, 1 x magnetic holder and carry case