Using this Torx double box wrench set is straightforward. Just select the right wrench with the appropriate Torx size for your job. Slip it onto the fastener and turn it clockwise or counter - clockwise as needed. When using, make sure the wrench fits snugly on the fastener to avoid slipping and causing damage. For maintenance, after each use, wipe the wrenches clean with a dry cloth to remove any dirt or debris. If they get wet, dry them thoroughly to prevent rust. Store the set in the provided roll in a dry place. Don't use these wrenches for tasks they're not designed for, as it could lead to tool damage and potential injury.