Using the Makita 6-1/2-inch Carbide-Tipped Circular Saw Blade Set is a breeze. First, make sure your cordless circular saw has a 5/8-inch arbor. Then, select the right blade - the 16T for coarser cuts and the 24T for finer ones. When you're ready to cut, hold the saw firmly and start the motor. Guide the saw smoothly through the material for the best results. Remember, always wear safety goggles and gloves. As for maintenance, after each use, wipe the blades clean to remove any sawdust or debris. Store the blades in a dry place to prevent rusting. If the blades become dull, you can consider getting them sharpened by a professional. With proper use and care, this blade set will serve you well for a long time.