Tornador Black Rotation Set - Using a 12mm box end wrench, remove the rotation set, be sure the clean any dirt or debris from the threads before installing the new part. USE Caution not to crimp or bend the inner liquid tube when installing the Rotation set. After the rotation set has been installed, pull the rotate set furthest away from the tool and trim excess inner liquid tube even with the end of the rotate set. Then reinstall cone.