3/4" Full Bullnose Router Bit Grinding Cup Cutting Blade core bit concrete stone
(To do Full shape bullnose. to ensure all grinder or polisher with 5/8"-11 thread. it works with grinder or polisher with 5/8"-11 Thread. polisher speed is below 5000 RPM when using with it. 5/8"-11 thread spindle grinder / polisher).