To use this drill bit, first make sure your drill is compatible with SDS - Plus bits. Insert the bit firmly into the drill chuck. When starting to drill, apply steady pressure and let the bit do its job. For faster and more efficient drilling, keep the drill moving steadily. As for maintenance, after each use, clean the bit with a brush to remove any debris. Store it in a dry place to prevent rust. Be careful not to use the bit on materials that are too hard for its capacity, as this could damage the bit. If you notice any signs of wear or damage, it's best to replace the bit.