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Tricone bit is an important tool for oil drilling.

GREAT DRILL BITS can be customized and supply various sizes , type downhole motor according to the drilling demand.

Steel tooth drills are suitable for extremely soft formations with low compressive strength and high drillability such as clay, mudstone, chalk, etc..

Overview 120 ° U-shaped Roller bitGREAT has customized manufacture several types of roller bit . The traditional roller bit was cut by tricone bit . So it is including No.1 ,No.2, No.3 Cone cutters ....