Surface Set Drill Bit
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Features:
1. Natural diamond setting on the surface of bit crown with hard matrix.
2. Size Available: 46mm - 146mm.
3. Applications: for geological drilling.
Rule of selecting diamond grade--the harder the rocks, the better the diamond grade should be.
|
Diamond Grade |
Formation Drilled |
|
A Grade |
Soft formation |
|
AA grade |
Soft to medium formation |
|
AAA grade |
Hard to very hard formation |
|
*AA grade is Forsun standar diamond grade used in natural diamond core bit. |
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