... Excellent after-sales OEM Blue CBN grinding paste for metal engraving1.Good lubrication,cooling performance2.Grit size:8- ... , processing, high polished.Hard alloy contour hard alloy material parts, instrumentation, measuring tools, cutting tools, abrasive etc.Water ... easy row cutting, high grinding efficiency, slightly corrosion of metal.Glass, ceramics, jewels, agate etc hard brittle materials products ...