GREAT's High-quality Bits Series II

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

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...

Tricone bit is an important tool for oil drilling.

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