PROFILE EDGE - designed to profile edges such as granite, quartz, porcelain, engineered stones and concrete PROFILE SHAPE - Shape V Full Bullnose PROFILE HEIGHT - 3/4" (~20mm) profile height GRIT/BOND - Vacuum Brazed diamond bond with #40/50 grit ARBOR SIZE - 5/8"-11 threaded arbor 3/4" full bullnose router bits designed to profile edge on granite, quartz, porcelain, engineered stones and concrete. 5/8"-11 threaded arbor fits hand grinders and polishers for flexible profiling work. Electroplated diamond with #40/50 grit for fast grinding.