Using the DeWalt DCK221F2 kit is easy. First, charge the 12V MAX* batteries with the DCB112 charger. For drilling tasks, select the DCD701 drill driver. You can choose the right speed and clutch setting according to your job. The 3 LED lights will help you see clearly in dim areas. When using the drill, make sure to keep a firm grip. For fastening jobs, use the DCF801 impact driver. Select the appropriate mode, and the Precision Drive™ feature will help you work accurately. When not in use, store the tools in the kit bag and keep them in a dry place. Periodically check the batteries and charger for any signs of damage. If you notice any issues, stop using the tools and contact DeWalt support.