4 Pc. Air Line Disconnect Tool Set (1) DT440 Air Line Disconnect Tool Set Disconnects air line and other push-In style fittings with ease. .Use on air system connections for heavy-duty trucks, brakes, suspension, steering, engine, transmission and more! .Angled ends provide maximum leverage including within hard-to-reach areas.Numerous industry applications including automotive, chemical, food processing, semiconductor and printing.Compatible for use with SUR&R products including AB25 Air Brake Repair Kit and K555 Nylon Fuel Line Union Assortment.4-piece set includes popular sizes: 6mm, 8mm, 10mm, 12mm, 15mm, 16mm, 18mm & 1/2” DT440