The Znex 18V CI-3180 cordless 1/2" impact wrench offers a max torque of 330 ft./lbs. With a variable speed control up to 2,000 rpm and 2,600 ipm, the high-output motor delivers unmatched power. All-metal hammer housing ensures rugged operation. The battery swivels out of way to provide more clearance, up to 270 degrees with detents at 90 degrees, 180 degrees and 270 degrees. a one-hour quick charger reduces downtime. An LED provides increased visibility, an ergonomically designed cushion grip helps reduce operator fatigue and a safety lanyard helps prevent accidental drop.