Using the DeWalt DWA161240L circular saw blade is a breeze. First, make sure your circular saw is turned off and unplugged if it's corded. Then, install the blade according to your saw's manual. When you're ready to cut, keep a steady hand and let the blade do its job. It's suitable for a variety of materials, but be extra careful when cutting nail - embedded wood as the blade's reinforced shoulder will handle the impact well. As for maintenance, after each use, wipe the blade clean with a dry cloth to remove any debris. If there's a lot of gumming, you can use a mild cleaner. Store the blade in a dry place to prevent rust. Also, always wear safety goggles and other appropriate safety gear when using this saw blade.