• 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 • 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