Cornwell Tools' bluePOWER 1/2" Super Duty Impact Wrench, No. CAT4135, features combination composite and magnesium body for high strength and light weight (weighs 4 lbs.) and high-efficiency twin-hammer mechanism provides 1,200 ft./lbs. of breakaway torque. The handle directs exhaust away from work, features a feather trigger and one-hand direction change lever.