The chuck size of a corded drill is an important factor to consider when buying a corded drill. This determines what type of drill bits you can use with the drill. Each corded drill also has specific motor power and ensures you’re getting a high-powered model if you’re drilling through brick or concrete, for example. Motor speed is another aspect to look out for when choosing which corded drill to buy. Different corded drills offer two motor speed options, 3000 RPM and 4000 RPM. The faster the speed, the more easily the drill will go through the surface. Our buying guide goes through the key features of a corded hammer drill in more detail.