Using the DeWalt DCS512J1 circular saw is easy. First, charge the 12V MAX* 5.0Ah battery (DCB126) with the included charger. Then, insert the battery into the saw. Make sure the blade is properly installed using the blade change wrench. When cutting, adjust the bevel capacity from 0 - 50° using the tool - free bevel lever according to your needs. Keep in mind that the LED light can help you see better and cut more accurately. For safety, always use the saw with proper protection gear and keep your hands away from the blade. After using the saw, turn it off and use the electric brake to stop the blade quickly. When storing the saw, use the built - in rafter hook on the job site or put it in the kit bag. To maintain the saw, clean the blade regularly and check the battery's charge level. Also, make sure the shoe material (aluminum) is free from debris. If you need to change the blade, follow the instructions carefully and use the blade change wrench.