Using the DeWalt 20V Max 23Ga Pin Nailer Kit DCN623D1 is a breeze. First, make sure the battery is fully charged and properly installed. Load the 23 Ga. pin nails, which can range from 5/8' to 1 - 1/2' in length, into the nailer. You can adjust the depth of the nails without using any tools, so it's easy to get the perfect finish. When you start working, just point the nailer at the spot and pull the trigger. Keep an eye on the LED indicator. When it lights up, it means it's time to reload the nails. As for maintenance, after each use, clean the nailer to remove any dust or debris. Store it in the soft - sided kit bag provided to protect it from damage. Also, follow the manufacturer's instructions for battery care. Remember, this nailer comes with a 3 - year limited warranty, a 1 - year free service contract, and a 90 - day money - back guarantee, so you can use it with confidence.