Polycrystalline bits use synthetic polycrystalline diamond elements as cutting media. Like surface-set diamond core drill bits, polycrystalline bits crowns consist of a tough wear resistant matrix that includes polycrystalline gauge protection setting. In softer formations, polycrystalline bits are capable of very high rates of penetration when compared to surface-set diamond core drill bits due largely to their high degree of cutter exposure.

Polycrystalline bits are divided into TSP (Thermally Stable Polycrystalline) Type and PCD (Polycrystalline Diamond) Type.

TSP Type Bits are produced with small triangular or cubic shaped cutters that are composed entirely of micron-sized synthetic diamond particles. They are all semi-round crown profile with either internal discharge type or face-discharge type waterway configurations.

PCD Type Bits uses larger cylindrical shaped PDC cutters that consist of a layer of micron-sized synthetic diamond particles that are mounted on a tungsten-carbide substrate. The PDC cutters vary in sizes and shapes to yield premium combination of penetration rate and long life in different formation. The PCD bits are constructed with a tough, wear resistant matrix body and gage reinforcement. And standard waterway configuration is face-discharge type.

Acedrills also involved in deal with high quality TSP and PCD bits in a various range for a long time.

Specification Overview:

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Gauge Size + Types