Diamond V50 Router Bit Profile Wheel / Profile Grinding Wheel Full Bullnose 50 MM 2" high for Grinder Polisher Tile Granite marble Concrete Shaping/Diamond Profiling 1 Piece of V50 (50mm / 2") Diamond Brazed Router Bit (with 5/8"-11 thread arbor). Diamond Profile Wheel / Profile grinding wheel built with Vacuum Brazed technology, very durable. Full bullnose (V50) Diamond Profile shape, 2" or 50 mm high. 5/8" 11 Threaded Profile Wheel arbor for Grinder Polisher Wet/Dry 5/8" 11 Spindle. Internal water feed through arbor for cooling, Optimal RPM 1500, Max RPM 5000.