Titanium hammer case is designed to be strong and durable, to protect the interior components of the air impact wrench. Impact and chemical resistant housing protects against repeated drops and exposure to shop fluids. 900 ft. lbs. forward torque, 930 ft. lbs. max reverse torque, 1220 blows per minute, 8500 rpm free speed. 1/4 inch air inlet, 3/8 inch minimum hose size. Two year manufacturer warranty.