diamond single row gringding wheel 1) Grinding Wheels : Single row. 2) For general purpose ,grinding and material removal. diamond gringding wheel 1. Type: Single row2. Used for Concrete, Masonry, Brick, Block, Marble, Granite.3. Center hole : 5/8"-11 or 7/8" DiameterLaser welded for segments 4" 4.1/2" For general purpose, 5" grinding and material removal 6" 7" other type: