With a DeWalt drill bit set, you'll get different drill bits for various jobs. Make sure that you choose the right DeWalt drill bit for the material you're drilling in. Choose a set of wood drill bits for wood and a set of metal drill bits for metal. There are also different sizes of drill bits in a Dewalt drill bit set. So check beforehand how large the holes you're drilling have to be. In addition, there's a difference in the type of drill bits. Drill bits with an SDS connector is suitable for hammer drills with an SDS drill chuck. The normal drill bits are suitable for drills with a quick release drill chuck.