Black & Decker HD555 is a versatile power tool designed for a wide range of drilling and screwdriving tasks. With its powerful motor and variable speed control, you can easily adjust the tool's performance to suit different materials and applications. The HD555 features a drilling mode selector for precise drilling in masonry or other materials, and a forward/reverse switch for easy screw driving and bit removal. For added safety, the tool is equipped with a lock-on button for continuous operation and a side handle for improved control.