Detailed Product Description 1/2" 12V DC ELECTRIC IMPACT WRENCH Features:1.DC 12V 1/2" impact wrench2.Max torque:250ft.lbs3.Output square shaft:1/2"4.Forward/Reverse rocker switch5.2ft adaptor cable for hook-up directly to the battery6.12ft long cord plug into cigarette lighter7.4pc 1/2"drive impact socket:11/16",3/4",13/16",7/8" (17,19,21,23mm)