... best for holding and protecting; 1/2" Twin Hammer Air Impact Wrench Max. torque: 450 FT/LBS Free speed: 7000RPM air ... 1pc-1/2" Twin hammer air impact wrench 10pc- impact sockets: 9,10,11,13,14,17,19,22,24,27mm1pc-1/2 ... - oil pot1pc-blow mold case 1/2" twin hammer air impact wrench