Follow up
I filed a coat hanger into a square shape and stuck 2 pieces off of the hanger into an old bill fold and soldered the hanger part to the bill fold.They protrude out of the holder about 1.5 inches and then filed the tips to an angle like a chisel.The beauty is that with extra hanger exposed you can re-sharpen the tips with a file.I used only 2 cutters instead of all 4 because its allows more accurate cutting control.The cutting edges are spaced to sit into the original grooves. The results are great if you dont rush it.When I had to plow through the epoxy I just took it slower as its much harder than the original wheel material.