Vacuum assist system for greater efficiency.* 3960 ft.-lb. of traction power.* Air inlet: 1/4in. NPTF.* 4 CFM avg. air consumption.* Comes with 3/1 6 in. and 1/4 in. nosepieces.* Includes carry case, hose and deflector.Yes.Air Inlet Size :1/4 in.Min. Hose Size :3/8 in.Case Included:No.Additional Product SpecsComposite housing:1/4in.Cutting Capacity Steel:18 gauge.Cutting Capacity :Aluminum 18 gauge.Cutting Capacity :Sheet Metal 18 gauge.Max. Cutting: 6 FPM.Air Inlet Size :1/4 in.Min. Hose Size :3/8 in.Additional Product Specs"Nibbles" cold rolled steel, plastic, tin, aluminum and other metals.* Does not distort the edges; starts cuts in the center of the material.