Hengshui Aoxing Geological Equipment Co., Ltd
Honesty as the foundation, win-win for the world, the virtue of the company, and the virtue of carrying things.
Add to Cart
Bq, Nq, Hq, Pq Surface Set Diamond Core Drilling Bit
Description:
Surface set diamond bits can be used with any type of core barrels. By varying the diamond grade, size, quality, and matrix hardness and crown shapes, the users can satisfactorily drill and core hard and homogeneous formations. To avoid excessive matrix wear at the leading edge of each segment, tungsten carbide inserts are fitted on each side of the water ways. This kind of bits cannot be used in broken or loose formations.
Polycrystalline geological drill bits are suitable for soft to medium hard rock. The rock is soft and the abrasiveness is weaker. The large grain polycrystal is used in the formation to obtain the high efficiency of drilling. Rough hard rock formations use smaller particles of polycrystalline, so that bit can be self-sharpened, in order to maintain the rate of penetration is basically the same.
Standard Crown Profiles for Surface Set Diamond Core Bits:
(1) Semi-round
(2) Multi-step
(3) Semi-round Face Discharge
(4) Multi-step Face Discharge
Surface set diamond core bit table
| 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