Diamond Profile Wheel for Granite, Marble, Travertine, and Porcelain for Tile Saws - 7" Diameter Shape B - 3/8" Radius Demi-Bullnose Designed for profiling edges of granite, marble, travertine, porcelain, and other natural stones. Electroplated diamond with #40/50 grit 5/8" Arbor for Tile Saws Max rpm: 5100 7" - 3/8" Radius Demi-Bullnose