PROFILE EDGE: Designed to profile edges of materials such as granite, quartz, porcelain, engineered stones, and concrete PROFILE SHAPE - Shape B Demi Bullnose: Create a demi bullnose profile shape with this bit PROFILE HEIGHT - 1-1/4" (30mm): This bit has a 1-1/4" profile height GRIT/BOND - Vacuum Brazed diamond bond with #40/50 grit: Offers fast grinding with a durable bond ARBOR SIZE - 5/8"-11 threaded arbor: Compatible with 5/8"-11 threaded hand grinders and polishers COMPATIBLE DEVICES: Angle Grinder, Polisher: Use with variable speed angle grinders or polishers for flexible profiling work 1-1/4" demi 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.