Features and Benefits: High performance motor delivers maximum torque forward and reverse Self-lubricated rotor blades 360 degrees adjustable exhaust directs air away from work surface Short robust crankshaft transfers power with low vibration Internal ring gear with three planetary gears provides maximum service lifeSpecifications: Square drive: 3/8"" Free speed: 160 rpm Overall length: 10, 3"" Net weight: 2-1/2 lbs, Max, torque: 60ft, /lbs Air inlet thread: 1/4"" NPT Air hose I, D, size: 3/8"" Avg, air consumption: 4cfm, Noise level: 93 dBA @ 90 PSI SKU: DOBA9823