Description of Bullnose Diamond Profiler Granite Countertop
For 40mm(1-1/2") thick full bullnose edge;. Using Vacuum Brazed Diamond Technology;. The nylon guide assure the profiled edge remains straight;. Wet or Dry Usage, recommend speed 3500- 4000 RPM. Suitable for Polishers/Grinders with 5/8"-11 thread spindle. Grit: Coarse.
I don't know how fast these things are at sanding a rounded top on granite, but this one seems to take forever and that's pre-sanding the top and bottom with diamond turbo cup. I even bought a good coffee grinder with adjustable water flow. It took over an hour to make a 5 1/2 foot edge.