Polycrystalline - Polycrystalline Diamond has many more cutting surfaces per particle, resulting in higher removal rates. As it cuts, it breaks down in its original shape, allowing for finer finishes in less time than when using monocrystalline diamond. Because polycrystalline has no cleavage planes, it cannot splinter like monocrystalline diamond. It causes less sub-surface deformation, and is excellent when polishing samples composed of different materials/hardness.
Monocrystalline - Monocrystalline Diamond provides a cost effective means for good stock removal and finish. It has a slightly irregular shape with multiple cutting edges, and is recommended for general applications where polycrystalline’s features are not required.
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