does anybody know what to use to lap a carborundum hone?.i tried to use wet /dry sand paper on my machinest flat plate'but the hone is so hard that the paper was wearing down with no effect on the hone. i have a cheep diamond combo hone. (horbor freight.) it was given to me it is a four sided block that has a grit rating of 200 300 400 and 600.it is a little better than the paper will this diamond hone be good enough.