Diamond Core bit is the most important part in terms of diamond core drilling tools, according to different raw materials, there are diamond core bit, PDC core bit and T.C core bit. While according to different production technologies, there are impregnated diamond core bits and surface set diamond core bits.
The main technical parameters of impregnated core bits include diamond type, size, connection and diamond grade, matrix hardness and crown shapes etc. While natural diamond surface set bits differ from impregnated core bits in that they only have a single layer of diamonds set onto the working surface of the bits according to a predetermined pattern.
Its waterways are usually shallower than an impregnated core bits because of the single layer of diamonds. Some bits are designed with face discharge holes to minimize core wash when drilling in soft or fractured formation.