Using the DeWalt DCN650D1 is easy. First, make sure the battery is fully charged and inserted correctly. Load the 15 - gauge angled finish nails into the magazine up to its capacity of 110 nails. You can choose between sequential or contact actuation modes using the tool - free selectable trigger. For precise countersinking of nails, use the tool - free depth adjustment feature. When working in low - light areas, the multi - functional LED lights will provide illumination and also help with tool diagnostics. Remember, always wear safety goggles and proper work gloves. Avoid using the nailer if the chain break is not working properly as it's for your kick - back protection. If you encounter a nail jam, use the tool - free jam release to clear it quickly. After use, clean the nailer with a dry cloth. Store it in a dry place and keep the battery charged at a moderate level to maintain its lifespan.