Using this DeWalt impact clutch is easy. First, make sure your impact driver or screw gun is turned off. Then, insert the clutch's shank into the tool. If you're working on a job where you want to protect your bits and screws, turn the ON/OFF switch to the ON position. This will help minimize stripping and breaking. If you need all the torque your tool can offer, switch it to the OFF position. When not in use, store the clutch in a dry place. Clean it regularly with a dry cloth to keep it in good working condition. Avoid using excessive force when installing or removing it from the tool to prevent damage.