STEELMAN 102-4 1/2-Inch Heavy-Duty Impact Wrench with 2-Inch Anvil Twin Hammer

.Twin hammer design - twin hammer mechanism delivers smooth and balanced yet hard-hitting blows
.Variable speed trigger - variable speed tease trigger gives optimum control of speed
.Extended anvil - 2-inch extended anvil allows use of flip sockets and easier access to deep tire wells
.Efficient motor - premium efficiency air motor uses only 4 CFM of compressed air so you can work longer
.Peak torque - 400 ft-lb of available maximum torque