The next generation Rock bits

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

PDC Hole Openers, are used to enlarge the pilot hole in Horizontal Directional Drilling(HDD).Widely used in construction, bridge, highway and railway construction.

Overview Starry Sky Roller BitGREAT has customized manufacture 90 ° U-shaped Roller Bit, 120 ° U-shaped Roller Bit and Starry Sky Roller Bit.The Roller bit mainly used for Rock reamer (Hole opener) ...

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