ok, so I am tired of looking for a reasonable priced clutch dog, (OMC 317667) so I am thinking I might just use a die grinder and square up the edges of the one I already have. Had a guy tell me that this would take away the temper in the metal, and only the surface of the metal was tempered anyway, so once I start grinding he said it would be softer as I got deeper. Is he right? Anyone ever dont this? Besides me?