GREAT's High-quality Bits Series II

GREAT customized made Diamond core bits ,which including Matrix body and Steel body.

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

Raise Boring Cutters OverviewThe raise boring cutters is mainly used for the construction of vertical shafts, ventilation shafts inclined shafts, pressure regulating shafts and escape shafts , and it...

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