Neiko 20662A Universal C-Frame Nut Splitter Drop forged steel construction of the nut splitter tool ensures durability and an extra sharp blade to split inevitable frozen or rusted nuts Nut splitter chisel rotates a full 360 degrees to line up parallel to bolt for the hard to reach lug nuts The tough universal nut splitting tool can break the most stubborn nuts ranging from 7/16" to 3/4" (11mm to 19mm) Chisel can break through the toughest nut or bolt without damaging the threads Simple mechanism involves a simple tightening adjustment for quick and efficient lug nut removal