PDC Drill Bits

PDC Reamer is the perfect tool for large diameter HDD bores. The size of the reamer is ranging from 12" to 50".

Core barrel with roller bit is used in very strong rock formations(compressive strength > 100Mpa)

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

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 ....