1" square impact wrench, 6000 rpm, 800 impacts per minute, 1400 lbs. max torque, 450-1000 ft lbs recommended torque
1/2" NPT inlet, Through hole socket retainer, Built-in power regulator, Pressure feed mechanism lubricator, Durable epoxy-coated handle/housing, Integral muffler, Jumbo hammer mechanism, steel hammer case