Stanley plane irons stanley 0 12 313 all stanley replacement plane irons are made from chrome carbon steel which has excellent edge retention characteristics and alows a razor sharp edge to be honedall cutters are fine rotary ground to give a flat surface that is easier to sharpensize 2in 50mmto fit 112004 112005 112204 112205 112014 and 112015 planes stanley 0 12 313 single plane iron 2in