Pferd universal line PS-Forte bench and pedestal grinding wheel, flat, series: universal line PS-Forte, 10 in wheel dia, 1 in wheel thickness, 1-1/4 in center hole, 36 grit, extra coarse grade, aluminum oxide abrasive, 2,485 RPM maximum, vitrified bond, applicable materials: steel and all ferrous metals, wheel type number: type 1. Pferd 61769 Universal Line PS-Forte Flat Bench and Pedestal Grinding Wheel, 10 in dia x 1 in thick