3" x 1/16" x 3/8" Ceramic Alumina Type 41 Cut-Off Wheel (5 Pieces) (89030) by Norton®. Get a fast, constant removal rate with this advanced Medallion SGZ CA Type 01/41 small-diameter cut-off wheel. This wheel uses a patented Norton SG ceramic-and-zirconia abrasive blend to combine an efficient cutting surface with minimal wear and long life.