Avoid Premature Wear Accurate BQ Drill Pipe Gauge Hole Diameter
Impregnated Diamond Core Bit is made with high quality synthetic diamonds, mixed evenly through a metal alloy matrix. Using hierarchical mole technology, to reduce the contact area of diamond bit matrix and the labial surface of the rock surface, and improve the drilling speed. The diamond bit mole with steel layer, to increase the pressure applied to the rock drill lip, improve the drilling speed of the drill bit. Put the first-grade abrasive-high strength, coarse grain diamond and two grade abrasives -low strength, fine grain diamond in the diamond bit, to improve the life of diamond bit.
| Size |
NQ3 |
Design |
DCDMA |
| Outer diameter MAX (mm) |
75.44 |
Outer diameter MAX (in) |
2.970 |
| Outer diameter MIN (mm) |
75.19 |
Outer diameter MIN (in) |
2.960 |
| Inner diameter MAX (mm) |
45.21 |
Inner diameter MAX (in) |
1.780 |
| Inner diameter MIN (mm) |
44.96 |
Inner diameter MIN (in) |
1.770 |
| Hole diameter (mm) |
75.6 |
Hole diameter (in) |
2.98 |
| Core diameter (mm) |
45.1 |
Core diameter (in) |
1.77 |
| Hole area (cm2) |
45.0 |
Hole area (in2) |
6.96 |
| Core area (cm2) |
15.9 |
Core area (in2) |
2.47 |
| Bit type |
Description |
Set type of Diamond |
Remarks |
| Wire-line |
dia. 56, 59, 75 and 95, BQ, NQ, HQ |
Impregnated |
|
| Couple tube |
dia.56, 59, 75, 76, 91, 110, 130 and 150 |
Impregnated |
|
| Single tube |
dia.46,56, 59,75, 91, 110, 130, 150, 171, 223 and 300 |
Impregnated |
|
Features:
1. High penetration rate and drilling effeciency.
2. Long service life;
3. Good gauge effect;
4. High cost performance;
5. Wide usable range, diamond core bits are the most commonly useful bits in the mineral exploration industry.
Specification:
| Double tube surface |
| Size( surface exploration drill |
Matric system(mm) |
Imperial system( in ) |
| Hole diameter |
Core diameter |
Hole diameter |
Core diameter |
| BQ |
60 |
36.4 |
2.36 |
1.43 |
| NQ |
75.7 |
47.6 |
2.98 |
1.88 |
| HQ |
96.1 |
63.5 |
3.78 |
2.5 |
| PQ |
122.7 |
85 |
4.83 |
3.34 |
| Triple tube surface |
| NQ3 |
75.7 |
45 |
2.98 |
1.78 |
| HQ3 |
96.1 |
61.1 |
3.78 |
2.41 |
| PQ3 |
122.7 |
83 |
4.83 |
3.27 |
- We supply A-Gauge impregnated core bit:AQ, AW, AGM;
- B-Gauge impregnated diamond core bit: BQ, BQ3, BTW, BX, LTK60;
- N-gauge impregnated core bit:NQ, NQ2, NQ3, NMLC, TNW;
- H-gauge impregnated core bit:HQ, HQ3, HMLC, HTW, HWF;
- P-gauge impregnated core drilling bit:PQ, PQ3;
- TT46 T2-46, TT56, T2-56, T2-66, T2-76, T2-86, T2-101;
- T6-76 impregnated diamond core bit, T6-86, T6-101, T6-116, T6-131, T6-146, etc.
