Using these core bit adapters is easy. First, make sure your Hilti® machine is turned off. Then, select the appropriate adapter according to the machine model and the size of the threaded bit hub you want to connect to. For example, if you have a DD100 with BI+ connection and a 1.250'-7 threaded bit hub, choose the Hilti Quick Disconnect 6 - Slot adapter in 1.250'-7 size. Connect the adapter firmly to the machine and then attach the bit hub. When using, always follow the safety instructions of your Hilti® machine. Avoid using the adapters if they are damaged. To maintain the adapters, clean them after each use with a dry cloth. Store them in a dry place to prevent rusting. If you notice any abnormal wear or tear, it's best to replace the adapter to ensure safe and efficient operation.