Using this Milwaukee 49 - 22 - 1132 SAWZALL blade kit is easy. First, select the appropriate blade for your task. If you're cutting nail - embedded wood, go for The Ax™ blade. For general demolition, The Wrecker™ blade is a great choice, and for metal cutting, use The Torch blade. When starting to cut, let the blade do the work. Don't force it too hard as this can damage the blade. As for maintenance, after each use, clean the blades with a dry cloth to remove any debris. Store the blades in a dry place to prevent rusting. If you notice any signs of excessive wear or damage, it's time to replace the blade. Keep in mind to always wear safety goggles and gloves when using these blades to protect yourself from any potential hazards.