Using the Bosch DBX543S diamond blades is easy. First, make sure your angle grinder has an X - LOCK mount or a standard 7/8 - inch arbor mount since these blades are backward compatible. To attach a blade, simply snap it onto the grinder. You'll hear a click, which means it's properly mounted. No need for any extra tools. When you're done cutting and need to change the blade, just pull the lever on the grinder. These blades are great for cutting common ceramic and stone tile materials. For best results, keep the blade moving steadily over the material. As for maintenance, after each use, clean the blade with a soft brush to remove any debris. Store the blades in a dry place to prevent rust. Also, avoid using the blades on materials they're not designed for, as this can damage the blade and reduce its lifespan.