MK Diamond 156722 MK-303 Professional 7-Inch Diameter Lapidary Blade by .050-Inch wide by 5/8-Inch Arbor,MK Diamond,156722" /> 7 by .050 by 5/8 inch - Continuous Rim Lapidary blade Professional grade diamond blade Designed for cutting rare and valuable materials Professional grade lapidary diamond blade Used for cutting rare and valuable gem stone materials Continuous rim for ultra smooth cuts Professional design cuts faster and lasts longer This blade is shipped in a 5/8 inch arbor with a 1/2 inch bushing