This powerful SKIL 6445-04 7 Amp 1/2 In. corded hammer drill is the ideal tool for tough applications. The 1/2 In. keyed chuck accepts larger diameter bits designed for woodworking and cutting while the side-assist handle provides more support when needed. The variable speed trigger accelerates smoothly from low to high speeds, while the 2-finger trigger with lock-on option gives you even more control.