GREAT focuses on Manufacturing PDC bits, Tricone rock bits, PDC reamers, Hole openers

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

Steel tooth drills are suitable for extremely soft formations with low compressive strength and high drillability such as clay, mudstone, chalk, etc..

Steel body PDC bit is made by AISI 4145H heat treatment steel manufacture, it has lower cost compare with Matrix body PDC bit.

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...