Using these DeWalt power bits is a breeze. First, pick the right bit for your fastener. Then, insert it into your power tool securely. When using, apply steady pressure to prevent cam - out. Make sure to use it on appropriate surfaces like wood or metal. As for maintenance, after each use, wipe the bits clean to remove any debris. Store them in a dry place to avoid rust. If you notice any signs of wear, it might be time to replace the bit.