
Cumi Sharp CUMI specialize in manufacturing of a complete line of closed sized abrasive grains in various shapes, sizes and densities, etc. to perfectly fit any grinding application and working condition. CUMI Sharp grains are blocky sharp edges with low iron and silica content. Its high toughness & hardness (Mohs Hardness 9), excellent abrasion resistance, high corrosion resistance properties combined with cooler cutting characteristics, appropriate friability, multi-fracturing properties exposing sharp edges and self sharpening characteristics makes it an ideal raw material for the manufacturing of bonded abrasive for all applications.