Core barrels with roller bits are drilling tools used for coring through rock shelves, especially for strong rock or rock with deep cracks.
RB-CB not only can improve the penetration rate, but also reduced drilling chatter and the strain on drilling rigs, compared to core barrels with bullet teeth/Round shank cutters.
The new formula and the new process of high-quality tungsten carbide teeth improve the service life of the reaming drill.
When selecting a core barrel with roller bits, you can consider factors such as:
TOOL DIAMETER | TOTAL LENGTH | EFFECTIVE LENGTH | ROLLER BIT | TEETH | INVERSE HOLDER |
---|---|---|---|---|---|
580 | 1885 | 1530 | 4 | 2 | 2 |
680 | 1885 | 1530 | 6 | 2 | 2 |
780 | 1885 | 1530 | 6 | 2 | 2 |
880 | 1885 | 1530 | 6 | 2 | 2 |
980 | 1885 | 1530 | 8 | 2 | 2 |
1180 | 1885 | 1530 | 10 | 2 | 2 |
1280 | 1885 | 1530 | 10 | 2 | 2 |
1480 | 1885 | 1530 | 12 | 2 | 2 |
1780 | 1885 | 1530 | 14 | 2 | 2 |
1980 | 1885 | 1530 | 16 | 2 | 2 |
2200 | 1885 | 1530 | 18 | 2 | 2 |
2480 | 1885 | 1530 | 20 | 2 | 2 |