Hitachi WR14DMB 14.4-Volt 1/2-Inch Square Drive Cordless Impact Wrench  (Discontinued by Manufacturer) 1,770 in/lbs torque for optimal power Lightweight at only 4.2 pounds for easy handling Convenient one-touch belt hook (with integrated LED job light) 1/2-inch square drive chuck for a wide range of applications Rubber grip for optimal comfort and control