Using your DeWalt DWAR656CT - 1 reciprocating saw blade is easy. First, make sure your saw is turned off and unplugged. Insert the blade securely into the saw according to the saw's instructions. When you're ready to cut, hold the saw firmly and start the saw. Guide it through the wood with nails slowly and steadily. This blade is designed to cut through wood with nails quickly, but take your time to ensure a smooth cut. When it comes to maintenance, after each use, wipe the blade clean with a dry cloth to remove sawdust and debris. Store the blade in a dry place to prevent rusting. And always wear safety goggles and gloves when using the blade to protect yourself from flying debris. If you notice the blade isn't cutting as well as it used to, it might be time to replace it.