Dartin for Divorce
1973298669, member: 56591"]Ones that attach to a die grinder? I've seen some that attach to dremels.[/QUOTE] Technically, they can all be called "die" grinders. The term comes from the old days of the "tool and die maker" occupations. The used those rotary tools for making dies for stamping production tools or car panels or what have you. It is quite a skill set and was an art that is now lost to CNC machining.