Granite Marble Concrete Travertine Countertop Shaping Demi Bullnose Router Bit
B5 is for 5 MM Thick or High stone concrete travertine. B10 is for 10 MM Thick or High stone concrete travertine. B13 is for 13 MM Thick or High stone concrete travertine. B20 is for 20 MM Thick or High stone concrete travertine.