Air Conditioning / Fuel Line Decoupling Tool Disconnect FUEL LINE Quick Connect Couplings on GM, Ford, Chrysler, Honda, Nissan & Toyota Use to disconnect Spring Lock Couplings on Ford and Chrysler air conditioning lines 5/16" size fits Push Lock Connectors found on Ford radiators and transmission lines Easy to use in confined spaces Set includes six(6) sizes: 5/16", 3/8", 1/2", 5/8", 3/4" and 7/8"