Diamond Core Drill Bits

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The Impregnated Diamond Core Bit is made from high-quality synthetic diamond and metal powder which could be used in various types of strata. The best effect is achieved through the flexible design according to different strata and parameters of drilling equipment.

Our impregnated bits are manufactured to give optimum penetration rates and bit life, which is required to keep the cost of diamond drilling to a minimum.

Crown Height:
We could offers crown impreg depths of  9mm, 12mm, 14mm and 16mm .The taller crown heights provide improved bit stability and reduced vibrations, enhancing bit life and performance.

Waterways:
Various waterways are available for diamond impregnated bits. Differing waterways allow for better flushing in various ground conditions and drilling systems.

The choice of the diamond bit crown shape:

W Profile
Suitable for drilling hard dense formations with high penetration rate.

Semi-Round Profile
Impregnated bits with this profile are recommended for use in highly fractured formations with good drilling stability. Surface set bits of this style have a long bit life and the matrix is not easy to be damaged.

Flat Profile
It’s suitable for various rocks, often used in impregnated casing bits, casing shoes as well as the bits with very hard matrices(e.g. F1, F2).

Cross Profile
It’s especially designed for ultra-hard formations, such as granite (hardness 8-9), ganister, quartzite, siliceous limestone, chert, etc.

Multi-Step Profile
Multi-Step type impregnated bit are suitable for soft to medium hard formations and alternating hard-soft formations. With very good drilling stability, it makes the borehole not liable to deflection and the penetration fast. This profile is also often adopted in thick-kerf surface set core bits, with good drilling stability and fast penetration.

Shaped Gear Profile
It’s suitable for competent formations, and can expand the flushing ways and improve the penetration rate.

Face Discharge
It’s suitable for sedimentary and metamorphic formations, or the formations including with lots of mineral powders, this design can protect the core from flushing and improve the getting effciency of core samples.

 

Depending on the range of application as well as the cutting media on the core bits, we makes six types of core bits:

Impregnated Diamond Type      

—Surface set Diamond Type

—T.C. (Tungsten Carbide) Type

—PDC Type

—TSP Type

—Electroplated Diamond Type

Generally, an overall Drilling System consist of core bits, reaming shells, core barrels, drill rods and drilling rig.

Core Bits are used for drilling materials like the rock, concrete etc..

Quality standard:International

Size:

A-Gauge Core Bits: AQ, AQ-RSG,AWG(AX), AWM, AWT, LTK48

B-Gauge Core Bits: BQ, BQ-RSG, BQ-2.400, BQ3, BWG(BX), BWM, BWT, LTK60, TBW

N-Gauge Core Bits:NQ, NQ-RSG, NQ-3.032, NQ2, NQ2-RSG, NQ3/NQTT, NQ3-RSG, NQ3-3.032, NMLC, NWG(NX), NWM, NWT, TNW,

H-Gauge Core Bits: HQ, HQ-RSG, HQ-3.830, HQ-3.895, HQ3/HQTT, HQ3-RSG, HQ3-3.895, HMLC, HWF-Long, HWF Short, HWG(HX), HWT

P-Gauge Core Bits: PQ, PQ3, PWF-Long, PWF-Short

S-Gague Core Bits: SWF-Long, SWF-Short

U-Gague Core Bits: UWF-Long, UWF-Short

Z-Gauge Core Bits: ZWF-Long, ZWF-Short

T, TT, T2&TB Series Metric Core Bits: T36, TT46, T2-46, TB56, TT56, T2-66, T2-76, T2-76Coreline, T2-86, T2-86Coreline, T2-101, T2-101Coreline

T6 Series Metric Core Bits: T6-76, T6-86, T6-101, T6-116, T6-131, T6-146

T6S Series Metric Core Bits: T6S-76, T6S-86, T6S-101, T6S-116,T6S-131, T6S-146

B Series(IS03552-1)Metric Core Bits: B36, B46, B56, B66, B76, B86, B101, B116, B131, B146

 

Dimensions of Core Bits:  

A-Gauge Core Bits

Size

Outside diameter

Inside diameter

inch mm inch mm
 AQ 1.880/1.870 47.75/47.50 1.607/1.057 27.10/26.85
 AQ-RSG 1.895/1.885 48.13/47.88 1.067/1.057 27.10/26.85
 AWG,AX 1.880/1.870 47.75/47.50 1.190/1.180 30.23/29.97
 AWM 1.880/1.870 47.75/47.50 1.190/1.180 30.23/29.97
 AWT 1.880/1.870 47.75/47.50 1.286/1.276 32.66/32.41
 LTK48 1.880/1.870 47.75/47.50 1.394/1.384 35.40/35.15

B-Gauge Core Bits

 BQ 2.350/2.340 59.69/59.44 1.438/1.428 36.52/36.27
 BQ-RSG 2.365/2.355 60.77/59.82 1.438/1.428 36.52/36.27
 BQ-2.400 2.045/2.395 61.09/60.83 1.438/1.428 36.52/36.27
 BQ3 2.350/2.340 59.69/59.44 1.325/1.315 33.65/33.40
 BWG,BX 2.350/2.340 59.69/59.44 1.660/1.650 42.16/41.91
 BWM 2.350/2.340 59.69/59.44 1.660/1.650 42.16/41.91
 BWT 2.350/2.340 59.69/59.44 1.755/1.745 44.58/44.32
 LTK60 2.350/2.340 59.69/59.44 1.742/1.732 44.25/44.00
 TBW 2.350/2.340 59.69/59.44 1.785/1.775 45.34/45.09

N-Gauge Core Bits

 NQ 2.970/2.960 75.44/75.19 1.880/1.870 47.75/47.50
 NQ-RSG 2.985/2.975 75.82/75.57 1.880/1.870 47.75/47.50
 NQ-3.032 3.037/3.027 77.14/76.89 1.880/1.870 47.75/47.50
 NQ2 2.970/2.960 75.44/75.19 2.000/1.990 50.80/50.55
 NQ2-RSG 2.985/2.975 75.82/75.57 2.000/1.990 50.80/50.55
 NQ3,NWLTT 2.970/2.960 75.44/75.19 1.780/1.770 45.21/44.96
 NQ3-RSG 2.985/2.975 75.82/75.57 1.780/1.770 45.21/44.96
 NQ3-3.032 3.037/3.027 77.14/76.89 1.780/1.770 45.21/44.96
 LMLC 2.970/2.960 75.44/75.19 2.052/2.042 52.12/51.87
 NWG, NX 2.970/2.960 75.44/75.19 2.160/2.150 54.86/54.61
 NWM 2.970/2.960 75.44/75.19 2.160/2.150 54.86/54.61
 NWT 2.970/2.960 75.44/75.19 2.318/2.308 58.87/58.62
 TNW 2.970/2.960 75.44/75.19 2.394/2.384 60.80/60.55

H-Gauge Core Bits

 HQ 3.770/3.755 95.76/95.38 2.505/2.495 63.63/63.38
 HQ-RSG 3.790/3.755 96.27/95.89 2.505/2.495 63.63/63.38
 HQ-3.830 3.840/3.825 97.54/97.16 2.505/2.495 63.63/63.38
 HQ-3.895 3.897/3.882 98.98/98.60 2.505/2.495 63.63/63.38
 HQ3, WLHTT 3.770/3.755 95.76/95.38 2.411/2.401 61.24/60.99
 HQ3-RSG 3.790/3.755 96.27/95.89 2.411/2.401 61.24/60.99
 HQ3-3.830 3.840/3.825 97.54/97.16 2.411/2.401 61.24/60.99
 HQ3-3.895 3.897/3.882 98.98/98.60 2.411/2.401 61.24/60.99
 HMLC 3.897/3.882 98.98/98.60 2.505/2.495 63.63/63.38
 HWF-Long 3.912/3.897 99.36/98.98 3.005/2.995 76.33/76.08
 HWF-Short 3.897/3.882 98.98/98.60 3.005/2.995 76.33/76.08
 HWG, HX 3.897/3.882 98.98/98.60 3.005/2.995 76.33/76.08
 HWM 3.897/3.882 98.98/98.60 3.005/2.995 76.33/76.08
 HWT 3.897/3.882 98.98/98.60 3.192/3.182 81.08/8082

P-Gauge Core Bits

 PQ 4.815/4.795 122.30/121.80 3.350/3.340 85.09/84.84
 PQ3 4.815/4.795 122.30/121.80 3.275/3.265 83.18/82.93
 PWF-Long 4.755/4.740 120.78/120.40 3.635/3.620 92.33/91.95
 PWF-Short 4.735/4.715 120.27/119.76 3.635/3.620 92.33/91.95

S-Gauge Core Bits

 SWF-Long 5.755/5.740 146.18/145.80 4.447/4.432 112.95/112.57
 SWF-Short 5.735/5.715 145.67/145.16 4.447/4.432 112.95/112.57

U-Gauge Core Bits

 UWF-Long 6.880/6.860 174.75/174.24 5.515/5.495 140.08/139.57
 UWF-Short 6.855/6.825 174.12/173.36 5.515/5.495 140.08/139.57

Z-Gauge Core Bits

 ZWF-Long 7.880/7.860 200.15/199.64 6.515/6.495 165.48/164.97
 ZWF-Short 7.855/7.825 199.52/198.76 6.515/6.495 165.48/164.97

T, TT, T2 & TB Series Metric Core Bits

 T36 1.422/1.412 36.12/35.87 0.859/0.849 21.82/21.57
 TT46 1.818/1.808 46.18/45.92 1.394/1.384 35.40/35.15
 T2-46 1.818/1.808 46.18/45.92 1.253/1.243 31.82/31.57
 TB56 2.220 56.30 1.640 41.70
 TT56 2.210/2.200 56.13/55.88 1.788/1.778 45.41/45.16
 T2-56 2.210/2.200 56.13/55.88 1.647/1.637 41.83/41.58
 T2-66 2.603/2.593 66.12/65.87 2.040/2.030 51.81/51.56
 T2-76 2.997/2.987 76.12/75.87 2.434/2.424 61.82/61.57
 T2-76 Coreline 2.997/2.987 76.12/75.87 2.288/2.278 58.12/57.87
 T2-86 3.391/3.381 86.13/85.88 2.828/2.818 71.83/71.58
 T2-86 Coreline 3.391/3.381 86.13/85.88 2.682/2.672 68.13/67.88
 T2-101 3.981/3.971 101.12/100.87 3.300/3.290 83.82/83.57
 T2-101 Coreline 3.971/3.971 101.12/100.87 3.155/3.145 80.13/79.88

T6 Series Metric Core Bits

 T6-76 2.997/2.987 76.12/75.87 2.249/2.239 57.12/56.87
 T6-86 3.391/3.381 86.13/85.88 2.643/2.633 67.13/66.88
 T6-101 3.981/3.971 101.12/100.87 3.115/3.105 79.12/78.87
 T6-116 4.575/4.560 116.20/115.82 3.667/3.657 93.14/92.89
 T6-131 5.165/5.150 131.19/130.81 4.257/4.247 108.13/107.88
 T6-146 5.755/5.740 146.18/145.8 4.847/4.837 123.11/122.86

T6S Series Metric Core Bits

 T6S-76 3.009/2.999 76.43/76.18 1.883/1.873 47.83/47.58
 T6S-86 3.403/3.393 86.43/86.18 2.277/2.267 57.83/57.58
 T6S-101 3.993/3.983 101.43/101.18 2.828/2.818 71.83/71.58
 T6S-116 4.586/4.571 116.48/116.10 3.379/3.369 85.83/85.58
 T6S-131 5.177/5.162 131.48/131.10 3.970/3.960 100.83/100.58
 T6S-146 5.767/5.752 146.48/146.10 4.560/4.550 115.83/115.58

B Series (ISO3552-1) Metric Core Bits

 B36 1.422/1.412 36.12/35.87 0.859/0.849 21.82/21.57
 B46 1.818/1.808 46.18/45.92 1.253/1.243 31.82/31.57
 B56 2.210/2.200 56.13/55.88 1.647/1.637 41.83/41.58
 B66 2.603/2.593 66.12/65.87 2.040/2.030 51.81/51.56
 B76 2.997/2.987 76.12/75.87 2.434/2.424 61.82/61.57
 B86 3.391/3.381 86.13/85.88 2.828/2.818 71.83/71.58
 B101 3.981/3.971 101.12/100.87 3.418/3.408 86.82/86.57
 B116 4.575/4.560 116.20/115.82 4.009/3.999 101.83/101.58
 B131 5.165/5.150 131.19/130.81 4.599/4.589 116.82/116.57
 B146 5.755/5.740 146.18/145.80 5.190/5.180 131.82/131.57
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