so what yer lookin for is NOT what you so carefully first described, which of course sidetracked folks cuz they only read the beginnings of posts
if it was coarser than a bastard file, it would be a rasp, but maybe what you were using was a "vixen file", which is an old timey coarse file for working soft metal - the name used at your shop may well have been given to it there because of its use
you might have more luck figuring it out over at
the auto body forumBill
