8 1/2 inch Zhong Cheng PDC drag drill bit
USD $300 - $2,000 /Piece
Min.Order:1 Piece
Hejian Zhongcheng Drill Bit Manufacture Co., Ltd.
Advantages
1. Short parabolic crown profile, medium cutter density.
2. Interchangeable screw nozzle.
3. Structured diamond/carbide interface. Cutter delays the onset of Fracturing and cutter wear.
4. Under-cut shank maximizes junk slot area for better bit cleaning. Hign filt nozzles for
improved hydraulics and Rop.
5. Can be used on rotary or down hole motor.
6. Surfable for soft to medium formation