Using the Milwaukee 2461 - 20 impact wrench is easy. First, make sure the battery is fully charged. You can check the remaining run - time on the on - board battery fuel gauge. When using it in tight spaces, its compact size and lightweight design will make the job a breeze. Just hold it firmly with the comfortable, slim grip and start fastening small fasteners. You'll get great control with the 450 in - lbs of torque. For maintenance, keep the tool clean. After each use, wipe it down with a dry cloth. If there's any dirt in the impact mechanism, use a soft brush to clean it gently. Also, store the tool in a dry place. The tool comes with a 5 - year warranty, but following these simple steps will help it last even longer.