This Benchmark 1/2" heavy duty variable speed reversible hammer drill delivers the power to drill through concrete, wood and steel. The 7.8 Amp motor ensures powerful performance in a wide variety of materials. Two variable speeds and impacts up to 51,300 BPM in hammer drill mode maximizes impact energy to blast through concrete, stone and masonry. The adjustable 360° metal side handle delivers maximum comfort and a secure hold while hammering. Features variable speed trigger with reverse switch and lock-on for continuous use.