This predrilled faceplate is the most important component of the Metal Machine. It serves as the mount for the upper and lower heads of the louver press and the other available Lowbuck Tools tools. It's welded to the front of the C-throat with the ends of the plate centered over the pads installed in the previous step (be careful to allow room for the nuts). Once it has cooled, the center section of the faceplate is cut out and removed. Welding the entire faceplate as one piece ensures the sections at the ends of the arms are level on all planes.