Using the Milwaukee 2566 - 20 M12 FUEL™ 1/4 High - Speed Ratchet is easy. First, make sure the battery is properly inserted and charged. You can either use it manually by just turning the ratchet without engaging the motor or switch it on for power. When using it in tight spaces, take advantage of its small head profile. The LED light can be turned on to help you see better in dark areas. Remember to check the on - board battery fuel gauge regularly so you don't run out of power in the middle of a job. For maintenance, keep it clean and dry. Wipe off any dirt or debris after each use. If you're working in an environment with corrosive materials, the special rubber on the tool can protect it, but still, try to avoid long - term exposure. Don't overload the tool. The REDLINK PLUS™ Intelligence is there to protect it, but it's better to use it within its recommended limits. Also, when storing the tool, keep it in a cool, dry place and remove the battery if you're not going to use it for a long time.