Chuck one thousand rounds based on alumina abrasive, the substrate is made into a gauze cloth through the pipeline. Then by gauze layered and full resin paste is made. The upper and lower grooved chuck vane fixing the sand between the upper and lower chuck, sand blades are provided at both ends of the inner side of the L-shaped snap ring groove and the fastening, fastening ring is fixedly connected with the anchoring groove, said After fastening ring with snap groove curing glue bonded together, and thousands of rounds. First, the supporting tools: The product fit in a variety of auto, electric and manual grinding machine for grinding and polishing operations, Second, product characteristics: The product face hard wear, with strong elasticity, cutting sharp, its processing efficiency, workpiece does not burn, physical and chemical properties of stable, safe, continuous operation is simple, time-saving more than the hand-polished, surface treatment is the best mass abrasive products. Third, the product detailed information Application No. / Patent No.: 200720042044 Abrasive: AluminumQxide Abrasive: aluminum oxide Backing: Cloth material: cloth Bond: R / R Binder: full resin outer diameter (Diameture): 100mm125mm150mm200mm250mm270mm300mm Thickness (Thickness): 25mm30mm40mm50mm60mm80mm100mm internal diameter (Aperture): 16mm25mm32mm granularity (Granularity): 60 # 80 # 100 # 120 # 150 # 180 # 220 # 240 # 280 # 320 # 360 # 400 # 600 # Fourth, the scope: Suitable for all kinds of wood, furniture, stainless steel, metal, stone and other areas of the surface of a large area of ??rough polishing, grinding, rust removal and grinding. Widely used in automotive manufacturing, heavy machinery, shipbuilding, steel, aluminum, metal and decorative industries. Especially for polishing the surface of metal products, or has an excellent effect of hole grinding. Special specifications can be customized.