Dewalt DCK241XR 18-volt XRP Cordless Ni-Cd 2-Tool Combo Kit - Factory Serviced, 2-Pack 18V XRP Ni-Cd Cordless Hammer Drill - DCD951R High torque motor delivers 500 in-lbs. of maximum torque 3-speed transmission features a maximum RPM of 2,000 34,000 BPM drills faster holes in masonry applications 1/2-in metal ratcheting chuck with carbide jaws prevents bits from slipping