CLOSEOUT WHEELS AND ABRASIVES: NORTON 9'' X 1/8'' X 7/8'' DEPRESSED CENTER CUTTING AND GRINDING WHEEL. Norton clipper cutting and grinding wheel. • 9 inch X 1/8 inch X 7/8 inch depressed center. • 230 X 4 X 22mm • Type 27 • 6600 max RPM • Made in the USA Wholesale, 20 per unit.