Disconnects quick connect push-in connectors found on heavy-duty truck air systems and more. Set comes with five popular sizes: 1/8"-5/32", 1/4", 3/8", 1/2" and 5/8". Each tool is double-ended to disconnect air lines even in hard-to-reach areas. Angled end allows maximum leverage. Smaller end fits in tight spots. Applications: Disconnects air systems on brakes, suspension, steering, engine, transmission and other auxiliary equipment. Also disconnects other quick connect push-in fittings, including: flow control valves, check valves, shuttle valves, quick exhaust valves and other function control fittings in compressed air systems. Smallest size also works on automatic adjusting air suspension systems for automobiles. 42470 1/8-5/32" Disconnect 42100 1/4" Disconnect 42110 3/8" Disconnect 42120 1/2" Disconnect 42130 5/8" Disconnect