Concrete Screw Kit, USA Made, 112 piece(s), Square/Hex/Slotted/Phillips drive type, Corrosion Resistant finish, including a(n) (25) 1/4 in. × 2-1/4 in. and (1) 5/16 in. Drill Chuck and (50) 1/4 in. × 1-1/4 IN, (35) 1/4 in. × 1-3/4 in. and (1) 3/16 in. × 3-1/2 in. Masonry Drill