Fall Automotive 7pc Fuel and Transmission Line Disconnect Tool 1/4", 5/16", 1/2", 3/8" Fastners High Quality Anodized Aluminum Fuel line disconnect tool set for separation of special couplers Easily disconnect coupler between fuel lines and filters For use on Ford, Chrysler, GM vehicles and some imports. Sizes: 1/4", 5/16", 1/2" and 3/8"