Chicago Pneumatic CP749K 1/2-Inch Super Duty Air Impact Wrench Kit Tackle the tough jobs with the power and speed of this true workhorse Oil bath "Spring Hammer" clutch mechanism for ultimate power, high durability and reduced vibration One hand push button forward/reverse power regulator Compact design with comfortable contoured handle Includes 5 sockets, 4 oz. bottle of oil and a heavy duty carrying case