A hammer drill is a powerful tool designed for drilling into hard materials like concrete and masonry. It combines the rotational motion of a regular drill with a rapid hammering action, allowing it to break through tough surfaces more easily. This makes it ideal for construction and renovation projects where you need to create holes for anchors, plumbing, or electrical work. Using a hammer drill is straightforward. You simply select the appropriate drill bit, set the tool to the hammer mode, and apply pressure as you drill. Many models also offer a regular drilling mode for softer materials like wood or metal, making them versatile tools for both professionals and DIY enthusiasts.