Originally Posted by
IanW
What is annoying is that it doesn't seem to develop that thin coating of protective oxides over the surface like on my old saws. My old Disstons, the youngest of which is a septuagenarian, have all got that thin coating of 'natural blueing' (there are a few small pits on a couple, but nothing serious), & as long as I keep them clean, they remain unchanged from year to year. But this new plate will rust at the slightest provocation, developing those crazy-pattern, deep zigzag pits like the one I showed above.