http://www.china-zjtk.com/dril....l-bits-and-reaming-s
Product Description
Impregnated diamond core bits are made of high-quality synthetic diamond grits mixed uniformly through a metal matrix and reinforced with cemented carbide and diamond. It is used for cutting medium to extra hard formations. Impregnated diamond bits are used in a variety of ground surfaces from crushed and highly abrasive to fine-grained, consolidated, and super-hard rock. Impregnated diamond bits are designed to be used as grinding machines with diamond embedded in an infiltrated or sintered matrix.

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