| Code | Specification | Segment number | Segment size |
| 1 | φ20x90 | 3 | 12x3x8 |
| 2 | φ25x90 | 4 | 12x3x8 |
| 3 | φ30x90 | 4 | 15x3x10 |
| 4 | φ35x90 | 4 | 15x3x10 |
| 5 | φ38x90 | 5 | 15x3x10 |
| 6 | φ40x90 | 5 | 15x3x10 |
| 7 | φ50x90 | 6 | 15x3x10 |
| 8 | φ56x90 | 5 | 24x3.5x10 |
| 9 | φ60x90 | 5 | 24x3.5x10 |
| 10 | φ65x90 | 6 | 24x3.5x10 |
| 11 | φ70x90 | 6 | 24x3.5x10 |
| 12 | φ75x90 | 7 | 24x3.5x10 |
| 13 | φ82x90 | 7 | 24x3.5x10 |
1. This core bit applies advanced technique, diamond-arrangement segments design makes it have a
longer lifespan and much shaper than common core bits.
2. This dry core bit allows no water while drilling, it's specially designed for granite.
3. Different connector types can be design for various drilling machine, such as 5/8"-11, M14, 1/2gas etc.
4. Different segment shapes and special size are available on requirement.
