Slice through straps, hangers, exhaust systems, and sheet metal. Specifications: Recommended hose size: 3/8"" Max speed: 20,000 RPM Wheel size: 3"" Average air consumption: 4CFM @ 90PSI Required Pressure: 90PSI Air inlet: 1/4"" NPT Arbor Size: 3/8"" Overal Length 8""