Neiko Heavy-Duty Universal C-Frame Nut Cracker/Spliter An essential tool every shop needs to effectively remove the inevitible frozen and rusted nuts "Heat-hardened, high-carbon steel chisel rotates 360 to line up parallel to bolt" "Quickly splits most stubborn nuts from 7/16"" to 3/4"" across the flat" Apply vise pressure with hand or air wrench "Heavy-gauge steel, built to last a lifetime"