Makita XWT06Z 18V LXT Lithium-Ion Cordless Square Drive Impact Wrench, 3/8-Inch Makita-built 4-pole motor delivers 155 ft.lbs. of Max Torque Variable speed (0-2,100 RPM & 0-3,200 IPM) for a wide range of fastening applications Compact and ergonomic design at only 6-1/8" long Weighs only 3.4 lbs. with battery (battery not included) for reduced operator fatigue Rubberized soft grip handle provides increased comfort on the job