4/4.5/5/6/7Inch Diamond Cup Grinding Wheel Turbo Row for Polishing Granite Stone Marble Glass Concrete Ceramic with 5/8"-11 Arbor Features: 1. High diamond laser welded technology 2. Long lifespan 3. Wet and dry applications 4. More diamond grind segment for more aggressiveness Warm tips: Wear protective gloves, masks and other protective equipment when using these discs. Aplacation: Mainly used for rough grinding and finishing of concrete floors, marble, granite surfaces, corners and corners.