toolfool
I used ETP (electrolytic tough pitch) copper buss bars. I cut a saw tooth design on a 3/4 X 7 plate and driled holes for a handle. This handle had 7 inch legs to help dissipate the heat, and a wooden handle.
This let me place diamonds on the vertical surfaces of the buckets, and then it also helped make nice even diamonds on the cutting edges and bottom of the mold boards.
To hold these plates in place on a vertical surface, I used to cut a "C" clamp in half, tack it to the surface two passes low, and used it to clamp the copper bar to the vertical plate. Because It was two passes low, I could make two passes of chevrons, which constitute one pass of diamonds. A dot in the center was usually added later.
Joe Kane