| NO. | Standard | Name | Outer diameter*Inner diameter(mm) | Waterways | Diamond particle sizes |
| Q series |
| 1 | AQ | Diamond core bit | 47.7*27.1 | 6 | 14/16 |
| 2 | BQ | Diamond core bit | 59.6*36.5 | 6 | 14/16 |
| 3 | NQ | Diamond core bit | 75.4*47.7 | 6 | 14/16 |
| 4 | NQ3 | Diamond core bit | 75.4*45.2 | 6 | 14/16 |
| 5 | HQ | Diamond core bit | 95.7*63.6 | 6 | 14/16 |
| 6 | HQ3 | Diamond core bit | 95.7*61.2 | 6 | 14/16 |
| 7 | PQ | Diamond core bit | 122.3*85.1 | 6 | 14/16 |
| 2 | PQ3 | Diamond core bit | 122.3*83 | 6 | 14/16 |
| NW series Surface Set Diamond core bit |
| 1 | NWM | Diamond core bit | 59.6*36.5 | 6 | 14/16 |
| 2 | NWG | Diamond core bit | 75.4*54.8 | 6 | 14/16 |
| MLC series Surface Set Diamond core bit |
| 1 | NMLC | Diamond core bit | 75.4*52.1 | 6 | 14/16 |
| 2 | HMLC | Diamond core bit | 98.9*63.6 | 6 | 14/16 |
| QTT series Surface Set Diamond core bit |
| 1 | NQTT | Diamond core bit | 75.4*45 | 6 | 14/16 |
| 2 | HQTT | Diamond core bit | 95.7*61.1 | 6 | 14/16 |
1. Can Surface Set Diamond Core Bits be used for drilling in deep
boreholes?
A: Yes, Surface Set Diamond Core Bits can be used for drilling deep
boreholes, but consideration should be given to factors such as
drilling equipment and bit stability.
2.:Can Surface Set Diamond Core Bits be used for drilling in
mineralized zones?
A: Yes, Surface Set Diamond Core Bits are commonly used for
drilling in mineralized zones to obtain representative core samples
for mineral exploration and evaluation.
3. Can Surface Set Diamond Core Bits be used for drilling in
underground coal mines?
A: Surface Set Diamond Core Bits are not typically used for
drilling in underground coal mines, as other specialized bits are
more commonly employed for coal mining operations.
4. Can Surface Set Diamond Core Bits be used for drilling in highly
fractured granite formations?
A: Surface Set Diamond Core Bits can be used in highly fractured
granite formations, but care must be taken to prevent excessive
core loss and maintain bit stability.
5. Can Surface Set Diamond Core Bits be used for drilling in narrow
boreholes?
A: Yes, Surface Set Diamond Core Bits can be used for drilling in
narrow boreholes, provided the bit size is compatible with the
desired borehole diameter
