15 1/2" IADC 637 Tricone bit drill bit hard rock drill TCI tricone bit

Cangzhou Great Drill Bits Co.,Ltd

1、Tooth shape includes wedge-shaped tooth(X),wide top tooth(K),spon type tooth(S),conical-ended s... More>>>

6“ IADC537 TCI bit tricone hard rock bit

Cangzhou Great Drill Bits Co.,Ltd

1.The strengthening of bits and inserts can effectively reduce the wear of tooth palms,improve ... More>>>

17 1/2" PDC bit Oilfield drilling tool steel body PDC bit

Cangzhou Great Drill Bits Co.,Ltd

Using new surface wear-resistant materials, more effective use of positive and negative ions to pr... More>>>

15 1/2"PDC bit high rotation speed PDC bit

Cangzhou Great Drill Bits Co.,Ltd

1. ØUsing new surface wear-resistant materials, more effective use of positive and negative ion... More>>>

12 1/4

Cangzhou Great Drill Bits Co.,Ltd

Due to the increase of buried depth and the uncertainty of formation, the drilling speed and efficie... More>>>

12" Hole opener for HDD

Cangzhou Great Drill Bits Co.,Ltd

Main features Forging shaft (50% rolled material spindle and 30% old drill collar spindle on the ma... More>>>

229*80MM Tungsten Carbide Rock Reverse circulation bit

Cangzhou Great Drill Bits Co.,Ltd

1. Premium PDC Cutter Which has a shallow parabolic profile and medium cutter density, designed for... More>>>

Cone bit

Cangzhou GREAT Drill Bits Co.,Ltd. 

Cone bit More>>>

398mm Hole opener rock reamer for drilling

Cangzhou Great Drill Bits Co.,Ltd

1.Main features Forging shaft (50% rolled material spindle and 30% old drill collar spindle on ... More>>>

3 7/8"PDC bit diamond bits for hard rock drilling

Cangzhou Great Drill Bits Co.,Ltd

1. ØUsing new surface wear-resistant materials, more effective use of positive and negative ion... More>>>