Details of Great Rock Reamer

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

Hybrid drill bit conventional PDC and roller-cone bits. It is saving cost, Improves Drilling Efficiency.

This type of Bi-center bit mainly used for medium to medium hard compressive and abrasive formation.

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...