The torch could be connected with the welding machine or the control device, equipped with different diameter welding wires and conductive tips, and passes through the protective cooling gas Ar 99.99%, which can be used for aluminum 99.99% argon gas weldingRecommended for use with YesWelder MIG-270K, YWM-200, YWM-211P, MIG-205DS-B, MIG-250PRO-SG welder. Description Spool Gun: LBT150Duty Cycle: 60%Cooling: Air-cooledConnector: European connectorMotor voltage: DC 24VWire Spool: D100/ 4’’Aluminum Wire Size: .030"-.045”U Knurl groove: .30”/.035”. 039”/.045" Suitable for softer wire The LBT150 Spool Gun features a 10’ direct connect cable, perfect for MIG welding softer wires, such as aluminum. The torch itself has a built-in wire spool and wire feeder, which reduces the distance that the wire needs to travel.   Visibility for the moving wire Clear plastic housing allows for full visibility of all moving parts, allowing you to ensure that your wire is feeding smoothly and consistently. You also have a clear view of your wire spool, so that you know when you need to replace it.