Using the DeWalt DCS389B 60V Max Brushless Reciprocating Saw is a breeze. First, make sure you have a fully - charged battery (sold separately) and insert it into the saw. Then, attach the included blade. You can adjust the speed between 0 - 3000 spm according to your cutting needs. When cutting, hold the saw firmly and let the blade do the work. For safety, always wear protective goggles and gloves. As for maintenance, after each use, clean the saw with a dry cloth to remove dust and debris. Check the blade regularly for wear and replace it if necessary. Store the saw in a dry place away from moisture and extreme temperatures. This will keep your saw in good condition and ready for your next project.