Knipex 9K 00 80 45 US Pliers Wrench Set, 6"/7"/10", 3-Piece Smooth jaws will not round off nuts or bolts and won't damage chrome or soft finishes Parallel jaws evenly distribute force to the workpiece for a secure grip that is 10x your strength Push-button adjustment  adjust once and it stays Unique ratcheting action for extremely fast turns of nuts and bolts without having to reset the tool German chrome vanadium electric steel, forged, oil-hardened