| Place of Origin |
China (Mainland) |
| Brand Name |
kerui |
Operative Standards: API Spec 7and related standard formulated by IADCGeneral Description:1. Drill Bit Type (1) Classify according to structure and working principle: Drag Bit, Cone Bit, Diamond Bit (including PDC Bit) (2) Classify according to function: Full Hole Bit, Coring Bit, Enlarging Bit2. Drill Bit Size Series: 3-3/4"----36"Common Size: 26" 17-1/2" 12-1/4" 8-1/2" 6-1/8" etc.