DEWALT DCK241X 18V Cordless XRP153; Hammerdrill / Reciprocating Saw Combo Kit 18V Cordless 1/2-in Hammerdrill/Drill/Driver - DCD951 DEWALT built high torque motor delivers 500 in-lbs. of maximum torque Three-speed all metal transmission features a max third speed at 2,000 RPM 420 unit watts out of maximum performance Hammerdrill mode at 34,000 bpm drills faster holes in masonry applications