Torque in Reverse: 600 ft-lb reverse bias. Free Speed: 8,500 RPM. Working Torque Range: 25-350 ft-lb. Average Air Consumption: 4.2 cfm. Air Consumption @ Load: 22 cfm. Air Inlet NPTF: 1/4". WARNING: Drinking Distilled Spirits, Beer, Coolers, Wine and Other Alcoholic Beverages May Increase Cancer Risk, and, During Pregnancy, Can Cause Birth Defects.