I have a set of collets that came in a pile.of stuff, and no luck trying to identify them. Top flat of cone is about 3/4" across, bottom of cone is 1" across, cone is about 13/16 with last 1/8" vertical (no taper). The ones I have run from 3/8-3/4, by 32, with two 64s in as well (pic is missing...