A hammer drill is a power tool designed for drilling into hard materials like concrete and masonry. It combines rotary motion with a hammering action, allowing the drill bit to break through tough surfaces more effectively than a standard drill. This makes it ideal for construction and renovation projects. Hammer drills typically have adjustable settings, enabling users to switch between regular drilling and hammering modes. They come in various sizes and power levels, catering to both professional contractors and DIY enthusiasts. Safety features, such as depth stops and ergonomic handles, enhance user control and comfort during operation.