Using the DeWalt DCK237P1 combo kit is straightforward. First, charge the 5.0Ah battery fully using the included charger. Once charged, insert it into the tool you want to use - either the circular saw or the reciprocating saw. For the circular saw, adjust the depth and bevel as needed using the tool - free adjustments. Line up your cut and start the saw using the trigger. The bright LED will help you see clearly in low - light conditions. The built - in rafter hook can be used to hang the saw when not in use. When using the reciprocating saw, choose the appropriate blade for the material you're cutting. Use the variable speed trigger to control the cutting speed. Remember to wear safety goggles and gloves when operating these tools. After use, clean the tools with a dry cloth to remove dust and debris. Store the tools in the kit bag provided. Periodically check the battery charge level and recharge it if necessary. If you notice any damage to the tools or the battery, stop using them immediately and contact DeWalt customer service.