Using your Makita 5-piece Starlock oscillating blade set is easy. First, pick the right blade for your task. For general wood and metal cutting, the all-purpose blade is a good start. If you need to make curved cuts in wood, use the curved plunge blade. When you're working with wood and nails, one of the plunge blades will do the job. And for metal, the carbide-tipped metal blade is your best bet. Before using, make sure your oscillating multi-tool is turned off. Attach the blade securely to the tool according to the tool's instructions. When you're done cutting, turn off the tool and remove the blade carefully. To keep your blades in good shape, clean them after each use with a soft brush to remove debris. Store the blades in a dry place to prevent rust. Don't force the blades while cutting. Let the blade do the work at a steady pace for the best results. Also, always wear safety goggles and gloves when using these blades to protect yourself from any flying debris.