Great Rock Reamer Hole Opener Quality Control

This is a 7 blade Matrix body PDC bit , with Stinger cutters back row, used for very abrasive formation.

Normally drag bits are 3 wings, but we can make 4 or 5 wings following your drawings or samples.

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

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...