DEWALT DW511 1/2 in. (13mm) 7.8 Amp VSR Corded Hammer Drill 7.8 Amp motor provides high performance and overload protection Variable speed allows for precise hole placement on work surface Dual mode: hammerdrill/drill for wood, steel or masonry applications 4.3 lbs. - lightweight design for extended use and less user fatigue 360 side handle with depth rod offers greater control, versatility, and increased depth accuracy