Powerbuilt 641290 Spring Lock Coupling Tools for Air Conditioner Systems 4 pc A/C Spring Lock Coupling Tool Makes it easy to separate spring lock air conditioning pressure lines 1981-current Ford vehicles and 1994 and newer Chrysler and jeep vehicles Includes red 3/8 inch A/C spring lock coupling tool Includes blue 1/2 inch A/C spring lock coupling tool Includes black 5/8 inch A/C spring lock coupling tool Includes beige 3/4 inch A/C spring lock coupling tool