Disconnects Air Conditioning and Quick Connect Fuel Lines. Disconnects spring lock couplings on Ford and Chrysler AC lines. Works on fuel lines and other quick disconnect couplings on domestic and import vehicles. The handles are angled to access tight spots. Made of durable plastic that resists fuels and solvents. Six sizes: 5/16ins, 3/8ins, 1/2ins, 5/8ins, 3/4ins and 7/8ins. All disconnects available individually skin-packed.