Using the DeWalt D25892K is straightforward. First, make sure it's properly plugged in since it's a corded tool. For different materials, use the variable - speed dial to adjust the drilling or chipping speed. If you're working on thick or dense concrete, set a higher speed. When using it for horizontal or downward chipping on mid - to - lower walls and floors, hold it firmly. The SHOCKS Active Vibration Control® will reduce the vibration you feel, but still, take breaks to avoid fatigue. As for maintenance, after each use, clean the tool to remove any dust or debris. Check the cord regularly for any signs of damage. You can also use the DEWALT Tool Connect™ app to keep track of the tool's location and manage your inventory easily.