The 2/3QLC wedge hook chuck is the universal clamping device for the contract lathe operator changing between 2- and 3-jaw chucks. It is used both for concentricity symmetrical as well as for the component with complex shapes. Equipped with the advantages of the QLC series (low maintenance, QLC jaw guide with lubricant reservoir, etc.) in a nitrided and sealed chuck body for the contract lathe operator. Together with the attached pendulum jaws, it is unbeatable in the series production of brake discs and flanges.