>>64181240
>D2 just makes toothy edges
chromium carbide inclusions in D2 can get pretty big, depending on how much care was taken with the annealing (probably not much)
you can get CPM D2 which is gonna be more homogenous and with smaller inclusions
however, you are amplifying the problem by using diamond, which is harder than even the carbide so it's going to leave big gouges
what you want is to juuust expose the tips of those carbides
so, use waterstone and start with a smaller grit than you would normally. don't deburr on steel, that will also create rips and tears in the material, just lap till it falls off from fatigue