Description: Up to 330 ft-lbs max of fastening torque at only 3.48lbs Includes the new Precision Wrench Control feature, which helps add more control when using the tool in forward and reverse. In Forward, the tool will pause before impacting to help prevent overtightening.. Specifications Impact Wrench Drive Size: 0.5 in.; voltage: 20V; Weight: 4 lbs; .