Using the DeWalt DCS353B XTREME 12V MAX Brushless Cordless Oscillating Tool is a breeze. First, make sure you've attached the right blade or accessory for the job. You can quickly change them using the Quick - Change system without needing a wrench. To start, hold the tool firmly and use the variable - speed trigger to control the speed according to your task. The trigger lock can be used to keep the tool running if you need continuous operation. When working in dark areas, turn on the LED light for better visibility. As for maintenance, after each use, clean the tool and the blades. Keep the tool in a dry place. Don't forget that this tool doesn't come with a battery, so you'll need to use a compatible one. If you're using different accessories, always check for proper fit and security before starting work.