As one of the professional oil drill bit manufacturers in China, Great now presents you with our latest PDC drill bit for oil fields. These oilfield bits can carry out high-efficiency drilling with stable performance.
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) ...