... delivery will attract your eyes. vitrified grinding wheel 1. Sharp cutting, 2. good edges holdout, 3.stronger flexibility than WA, ... quantity of ZrO increases.3. Only no harder than Boron carbide and Diamond, friable, its girt is sharp, and Thermal ... -speed steel, High-carbon steel,Chromium corundumPAPink,rose-red Sharp cutting, good edges holdout, durableSuitable for form grinding, knives, Measuring ...