Face Discharge Profile Diamond Core Bit / Wire Line Drilling Stone Core Drill Bits
Diamond Core Bit
N/WL,STD profile(75.31mm/45.08mm), Suitable for Fractured formation, when need Complete core.
Face discharge profile
The impregnated diamond bit is used for cutting holes in medium to ultra hard formations. A variety of variations are available to maximize drill life and penetration
The crown is made up of a metal powder and diamond matrix that wears away during the drilling process and exposes new layers of diamonds, renewing the cutting
- In order to help the customer to select suitable bit and reduce customer’s workload, please follow below three steps to choice your bit.
{1}Assure diameter of Impregnated bit
| Type | Core bit |
| Outer Diameter | Inner Diameter |
| Inch | mm | Inch | mm |
| BTW | 2.345 | 59.56 | 1.667 | 42.35 |
| NTW | 2.965 | 75.31 | 2.218 | 56.35 |
| HTW | 3.762 | 95.57 | 2.809 | 71.35 |
| A/WL | 1.875 | 47.63 | 1.062 | 26.97 |
| B/WL | 2.345 | 59.56 | 1.433 | 36.4 |
| B/WL-3 | 2.345 | 59.56 | 1.32 | 33.53 |
| N/WL | 2.965 | 75.31 | 1.875 | 47.63 |
| N/WL-3 | 2.965 | 75.31 | 1.775 | 45.08 |
| H/WL | 3.762 | 95.57 | 2.5 | 63.5 |
| H/WL-3 | 3.762 | 95.57 | 2.406 | 61.11 |
| P/WL | 4.805 | 122.05 | 3.345 | 84.96 |
| P/WL-3 | 4.805 | 122.05 | 3.27 | 83.06 |
| T2-56 | 2.205 | 56 | 1.642 | 41.7 |
| T2-76 | 2.992 | 76 | 2.429 | 61.7 |
| T2-86 | 3.385 | 86 | 2.823 | 71.7 |
| T2-101 | 3.976 | 101 | 3.295 | 83.7 |
| T6-101 | 3.976 | 101 | 3.11 | 79 |
| T6-131 | 5.157 | 131 | 4.252 | 108
|
{2}(1)Appropriate hardness of matrix(For some special or complicated ground,we will need to customize the diamond bits according to the actual drilling conditions.)
(2)Appropriate profile/water way and height of the crown(Height of the crown:9mm-20mm,standard:14mm,Customized)
W-Profile(Standard profile)
·General purpose design
·Suitable for mixed formations contain broken and competent zones
·Suitable for a board range of formations
·Height of crown:14mm,Customized
Face discharge Profile
·Design to minimize washing of core sample
·Suitable for broken/granular formations
·Height of crown:14mm,Customized
Turbo Profile
·High performance ”free cutting” bit
·High productivity
·Suitable for hard/competent formations
·Suitable for non-abrasive formations
Height of crown:14mm,Customized
Sand profile
Suitable for competent to extremly broken or clay,
clay/sand mixed formations
·Double tube applications
·To improve core recovery in soft/broken or loose zones
·Height of crown:14mm,Customized
Taper Profile
·Profile used in hole wedging(directional drilling)
Operations to ream wedged hole after pilot bit
· Height of crown:14mm,Customized
{3}Select suitable series from our three types
(1)Master Series(Full range hardness of stratum)
Manufactured one by one with care and precision,Master™ core bit are designed to our highest quality standards. They offer their best performance in very hard to extremely hard types, such as those comprised of basalt and felsic or volcanic rock and so on.
(2)Navigator Series(Soft -very hard hardness of stratum)
Navigator™is our highest cost performace and most popular series. This series provides the versatility you need for optimum drilling perforance in varying conditions, best performance in soft to very hard stratums
(3)Junior Series(Soft-medium hardness of stratum)
Attractive price with high cost performance, Junior™series provide good performance in soft to medium stratums
