DeWalt® DW511 Variable Speed Reversing Single Speed Hammerdrill, 8.5A, 1/2"Lightweight design for extended use and less user fatigue. 8. 5 amp motor provides high performance and overload protection. Dual mode: hammerdrill drill for wood, steel, or masonry applications. Two finger trigger for increased comfort. 360 degree side handle with depth rod offers greater control, versatility, and increased depth accuracy. Variable speed allows for precise hole placement on work surface. 8. 5 amp motor provides high performance and