To use these wrenches, simply select the appropriate size from 6AN to 16AN for your fuel fitting. Place the wrench securely around the fitting and turn it gently to avoid over - tightening. When not in use, store them in a dry place to prevent rust. Clean the wrenches with a mild soap and water solution occasionally to keep them in good condition. Remember, these wrenches are designed for fuel fittings, so don't use them on other types of hardware to avoid damage.
