The DeWalt DW4771 7" Diamond Cup Grinding Wheel is designed to be used with angle grinders for quick material removal. The DW4771 has an optimized cutting matrix height for maximum diamond exposure, increasing your productivity. The high concentration of diamond lets you cut faster, easier, and longer. This DW4771 is built to last. If you are looking for superior performance for rough griding, deburring, and fast material removal look no further than the DeWalt DW4771 Diamond Cup Grinding Wheel.