Fast-drilling Bulldog SDS-plus bit design – with a carbide tip, brazing process and centric tip for rapid rotary concrete drilling Bosch-made carbide tip – deliver outstanding durability under heavy loads Upgraded flute design – aggressively pulls dust away from hole, for faster and cooler drilling Centric conical tip – ideal for drilling anchoring holes, the centering tip provides precise starts Hex drive on bit fits into driver sleeve – features a 1/4 In. hex shoulder for a drive sleeve used to set masonry screws Includes: Hex Drill Bits: 5/32", 3/16"; Flat Shank Bits: 5/32", 3/16" Drill Bits: Phillips Insert Bits: #2, #3; 5-3/4" Sleeve, Sockets: 1/4", 5/16"