Chicago Pneumatic CP6135-D80 - 1-1/2 Inch Air Impact Wrench, D-Handle with Side Handle, Max Torque Reverse Output 5900 ft. lbf / 8000 Nm, 2800 RPM, Pinless Rocking Dog 6151590380Best Power to Weight ratio Super Industrial App An ultra lightweight impact wrench series 1 1 2",#5 for heavy duty industrial users who require very high torque. The best power to weight ratio available in the 1 1 2, #5 impact wrench category. This compact and reliable tool is designed with a durable pinless rocking dog clutch mechanism, aluminium body and steel clutch housing to work comfortably in all heavy duty assembly or disassembly applications.