GRINDING WHEEL, TYPE 27, 30 GRIT, 8,600 RPM, 7 X 1/8 IN, 7/8 IN ARBOR, ALUMINUM OXIDE. Item # WLT08W702. Mfr. Model # 08W702. This type 27 grinding wheel has a seven-inch diameter, a 1/8-inch thickness, and a 7/8-inch arbor. This wheel is 30 grit, has an aluminum oxide abrasive grain, and can be used to a maximum of 8,600 …Web