Steelman 2-Gear-Type Air Drill with a 3/8" chuck and spindle thread of 3/8"-24 offers a free speed of 2,200 RPM. This air-powered tool features a teasing throttle for precise control, with a powerful air motor that resists stalls and conserves energy. This product also features a 1/4" air inlet (for 3/8" hose) and runs on 90 PSI of air pressure, with an air consumption of 4 CFM, measuring 6-1/2" in overall length.