Professional diamond drum wheel with water holes for granite, marble, stone, concrete grinding polishing; Vacuum Brazed drums for durability, very effective and long lasting; Aggressive for faster grinding of stone surfaces, very effective to polish grind shape oval hard to reach areas; Works great for granite marble stone concrete concave convex surface grinding polishing; 5/8" 11 or M14 thread spindle fits with grinders, wet polishers; Optimal RPM 1800 Max RPM 3000.
