The DEWALT DW511 is a heavy-duty corded hammer drill with a 1/2" keyed chuck size and a maximum torque of 629 in-lbs. It has a single speed of 2700 RPM and a power source of 120V corded electric. The drill is lightweight, weighing only 4.3 lbs, and has an auxiliary handle for added control. The motor type is brushed and it has a power output of 850W. The drill is yellow and black in color and has a length of 11.5 in and a height of 13.9 in.