Using the Bosch RC2144 is easy. First, make sure your rotary hammer is in rotation mode and has an SDS - Plus chuck. Insert the bit firmly into the chuck. When you start drilling, let the bit do the work. Thanks to its unique flute geometry, debris will be removed quickly. Don't push too hard; the bit's tapered body design makes drilling smooth. As for maintenance, after each use, clean the bit to remove any debris. Check the carbide tip regularly for signs of wear. If it's getting dull, it might be time to replace the bit. Keep the bit in a dry place to prevent rust. And remember, since this bit is so fast and long - lasting, you'll get a lot of use out of it, but always use it according to the safety guidelines of your rotary hammer.