the cutter expander 30 while the upper die 32 is above the plane of the sheet metal 70 on the other hand to create the region of expanded sheet metal 72 a 72 b the rollers 21 a 21 b rotate at a much slower rate of speed so that the cutter expander 30 is able to engage cut and expand the sheet metal 70 in a series of rows as described above in the preferred embodiments the diamonds or other geometrical shapes range from u215b to 2 inches wide in the direction sw and u00bc to 6 inches long in the direction sl in view of the foregoing detailed description of preferred embodiments of the present invention it readily will be understood by those persons skilled in the art that the present invention is susceptible of broad utility and application many embodiments and adaptations of the present invention other than those herein described as well as many variations modifications and equivalent arrangements will be apparent from or reasonably suggested by the present invention and the foregoing description thereof without departing from the substance or scope of the present invention furthermore any sequence s and or temporal order of steps of various processes described and claimed herein are those considered to be the best mode contemplated for carrying out the present invention it should also be understood that although steps of various processes may be shown and described as being in a preferred sequence or temporal order the steps of any such processes are not limited to being carried out in any particular sequence or order absent a specific indication of such to achieve a.