Norton has been a leader in the Abrasives market for over 125 years. Norton, a Saint Gobain brand is known to have a quality reputation and to be on the cutting edge of innovation. Norton is the world's leading supplier in Bonded Abrasives providing amazing products for aerospace, automotive, construction and many other industrial settings. Norton provides excellent quality Type 27 "Depressed Center" grinding wheels at affordable prices. Please contact the Trans American staff with any questions or concerns!