The impact hammering motion of the Black & Decker 550W Impact Drill kr554re makes it ideal for drilling in a wide variety of materials, including concrete, wood, metal, and more. With the ability to screw in backward. The auxiliary handle and the rubberized hold allow for prolonged use without discomfort. Powerful motor and high impact rate for quick, effortless drilling in stone; interchangeable bits; lightweight and insulated shock proof plastic body with ergonomic grip locations. Consistent extras a depth measure with an additional grip for turning a chuck key