Dr.Roc Scissor Jack Adapter For Use With 1/2 Inch Drive Impact Wrench or 13/16 Inch Lug Wrench,Scissor Jack Adaptor For Automotive Jack, RV or Trailer Leveling Jacks, Use Drill or Wrench To Simplify,A Lift Your Jack Very Easy:Made Of Very Solid Chrome Vanadium Steel,Easily use with your scissor jack, Suitable to most of loop type or double eyelet type scissor jacks in the marketif you are worry about its compatibilityplease check the oval's size on your jacks Slot Size: 8.8mm(0.35 inch) wide,23.90mm(0.94 inch) deep;Bolt Length:4.1cm ;Bolt Dimensions:9.7mm Easy to use with the following tools:1) 1/2" drive/impact drills/ratchet or standard drive sockets;2) 13/16" lug wrench/tire iron or socket or easily add a half inch adapter to any drill;3) If you don't have a 1/2 inch hex or impact wrench, you can very easily get a standard drill bit to 1/2" adapter and use any cordless or corded drill with this tool and those difficult scissor jacks Dr.Roc-Most trusted auto accessories expert,millions buyers' choice, excellent customer service with lifetime warranty