Bosch Impact Tough 7 Piece High Speed Steel Masonry Drill Bit for Hammer Drill Galvanized Steel Compact Wall Storage: 30 in W '3798823 Compact Wall Storage: 30 in W x 12 in H x 12 in D footprint fits over appliances or tight spaces Style: Easy White 12 AC3 Carbide tipped masonry bit with upgraded hex shank design – engineered to provide long bit life and fast material removal Asymmetric diamond ground carbide tip – allows for fast drilling and longer bit life Upgraded hex shank – allows use in impact drivers and hammer drill drivers for added versatility Exclusive Bosch made carbide – delivers outstanding durability under heavy loads Set contents: (1) 1 8 in x 3 in (2) 3 16 in x 6 in