
Double row design with 18 diamond segments for 7/8" drive 4-1/2 inch (115 mm outer diameter), 3 mm thick steel body and 4.5 mm workable thickness 40-50 diamond grit for grinding CONCRETE/MASONRY/GRANITE/MARBLE/BRICK... Double row design for aggressive and fast material removal Strong steel body offers stable cutting performance and good surface finish at lower cost to save money