Using the Bosch HC5043 rotary hammer bit is quite straightforward. First, make sure your hammer drill is compatible with SDS-Max bits. Insert the bit into the chuck of your hammer drill until it locks in place. When starting to drill, apply gentle pressure and let the active - centering tip do its job to get an accurate start. For best results, especially when drilling concrete, keep a steady hand and let the bit's high - speed inclined side cutters work. As you drill, the compact head will help remove dust quickly, which is great for the bit's longevity. There are a few things to keep in mind. Don't force the bit too hard as it might damage the bit or the drill. Always check the wear mark indicator. If it shows significant wear, it's time to replace the bit to ensure the accuracy of the hole diameter. For maintenance, after each use, wipe the bit clean to remove any dust or debris. You can use a dry cloth or a small brush. Store the bit in a dry place to prevent rusting. This way, your Bosch HC5043 bit will serve you well for a long time.