Using the DeWalt DCG416VSB grinder is straightforward. First, make sure you've attached the Type 27 Guard and the Side Handle securely using the Hex Key. Then, insert your battery (not included) into the grinder. You can adjust the wheel speed according to the task you're doing, thanks to the variable speed function. When you start using it, if the grinder experiences a pinch, stall, or bind - up, the Kickback Brake and E - CLUTCH® System will kick in to protect you. Just release the trigger, and the wheel will stop quickly. For asset management on the jobsite, you can insert the Tool Connect™ Chip DCE042 (sold separately) into the chip pocket and use the Tool Connect™ Site Manager app. Remember, always wear proper safety gear like goggles and gloves. After use, clean the grinder with a dry cloth. Keep it in a dry place, and regularly check the battery and other parts for any signs of damage. If you need to replace the battery or other components, use only genuine DeWalt parts.