GREAT's High-quality Bits Series I

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) ...

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

RC PDC bit from GREAT are manufactured from AISI 4145H heat-treated steel.

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