Milwaukee Electric Tool Corporation introduces a new line of Flap Discs for grinding and finishing metals. The discs are made with high performance zirconia grain which provides longer life than standard zirconia and aluminum oxide discs, grind cooler and last up to 15% longer than fiber discs. The discs are available in flat and conical design configurations and in 4-1/2 inch, 5 inch and 7 inch sizes providing flexibility for work on either flat or irregular surfaces.