Using the DeWalt DCS570B is a breeze. First, make sure the battery is fully charged and properly inserted. When you're ready to cut, hold the saw firmly with both hands. Line up the blade with your cutting mark. For cross - cutting 2x materials or ripping sheet goods, this saw's brushless motor will give you a smooth and efficient cut. You can adjust the bevel up to 57 degrees for different cutting angles. When it comes to changing the blade, use the included blade - changing wrench. Make sure the saw is turned off and unplugged (if it's a battery - powered saw, remove the battery) before changing the blade. To maintain your saw, keep it clean after each use. Wipe off any dust or debris. Check the blade regularly for wear and tear, and replace it when necessary. Also, store the saw in a dry place to prevent rusting.