Matco Tools Air Line Disconnect Set (ALD420) is a specialized automotive tool kit designed for removing push-to-connect air line fittings, commonly used in heavy-duty truck braking and suspension. The set listed for sale has the Matco name imprinted on the largest piece but I couldn’t find it on the other 3. The smallest tool is not original to the set. The sizes are as follows: 5/8” 1/2” 1/4” 1/8” (my estimate). Rely on your own judgment based on the photos.
