The Milwaukee 49-94-3000 is a three pack of 3â x .040 x 3/8â cut-off wheels. Rated for a maximum 20,000rpm this wheel is an ideal solution for cutting stainless and other metals quickly and efficiently. Milwaukeeâs comprehensive offering of grinding and cutting wheels consists of 45 unique products ranging in diameters from 3â to 14â with arbor configurations of 3/8â, 7/8â, 20mm, and 5/8â.Â