Suitability of gloves should be determined both equally by material and quality, the latter of which could vary by manufacturer. Coarse. Coarse grit is used to remove rough edges from rocks. It's the largest type of grit and is usually silicon carbide. What nomenclature do SiC devices use? SiC transistors https://silicon-carbide-desulfuri64073.blogocial.com/the-5-second-trick-for-silicon-carbide-semiconductor-pdf-64928473