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NMLC Impregnated dry diamond core bit 6 inch for hard rock

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NMLC Impregnated dry diamond core bit 6 inch for hard rock

China NMLC Impregnated dry diamond core bit 6 inch for hard rock supplier

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Product Details:

Place of Origin: CHANGSHA HUNAN
Brand Name: CHANGTAN
Certification: SGS/CE/ISO9001
Model Number: AQ BQ NQ HQ PQ T2,NMLC

Payment & Shipping Terms:

Minimum Order Quantity: 1 SET
Price: 70USD-400USD
Packaging Details: Exported wooden box
Delivery Time: 7-10 working days
Payment Terms: T/T L/C
Supply Ability: 1000 pc /MONTH
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Detailed Product Description
Type 1: Electroplated Diamond Type 2: Impregnated Diamond
Type 3: Surface Set Diamond Type 4: Tungsten Carbide
Type 5: Polycrystalline Diamond Compact

NMLC Impregnated Dry Diamond Core Bit 6 Inch For Hard Rock 

Q series core bits
Size O.D I.D Availability
mm mm Imp. S.S T.C. PDC TSP E.P.
AQ 47.75/47.50 27.10/26.85
BQ 59.69/59.44 36.52/36.27
BQ3 59.69/59.44 33.65/33.40
NQ 75.44/75.19 47.75/47.50
NQ3 75.44/75.19 45.21/44.96
HQ 95.76/95.38 63.63/63.38
HQ3 95.76/95.38 61.24/60.99
PQ 122.30/121.80 85.09/84.84
PQ3 122.30/121.80 83.18/82.93
Core bits for N-series double core barrels
NMLC 75.44/75.19 52.12/51.87
HMLC 98.98/98.60 63.63/63.38
Core bits for T2 series double core barrels
T2-46 46.18/45.92 31.82/31.57
T2-56 56.13/55.88 41.83/41.58
T2-76 76.12/75.87 61.82/61.57
T2-86 86.13/85.88 71.83/71.58
T2-101 101.12/100.87 83.82/83.57
Core bits for T6 series double core barrels
T6-76 76.12/75.87 57.12/56.87
T6-86 86.13/85.88 67.13/66.88
T6-101 101.12/100.87 79.12/78.87
T6-116 116.20/115.82 93.14/92.89
T6-131 131.19/130.81 108.13/107.88
T6-146 146.18/145.80 123.11/122.86
Core bits for Chinese standard single tube core barrels
59 59.5 41.5
75 75.2 54.5
91 91.2 68
110 111.2 93
130 131.2 113
150 151.2 133
170 171.2 149
219 225.2 197
Core bits for Chinese standard double tube core barrels
75 75.2 54.5
91 91.2 68
110 111.2 93  



Imp.-Impregnated Diamond Type

S.S.-Surface Set Diamond Type

T.C.-Tungsten Carbide Type

PDC.-Polycrystalline Diamond compact Type

E.P.- Electroplated Diamond Type


Notice :

To select the right bit for the job, assess the speed and power of your drill for the size and depths of the holes to be drilled and assess ground conditions such as rock type/formation and down-hole conditions.

Changtan bits are available in all standard drilling sizes . Also, non-standard sized bits can be produced according to requirements from clients.

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

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

Changtan impregnated bits matrices can be selected by our engineer according to ground conditions at client's work site.
standard WL threads as well as thread types required by clients are available.
1.Fast cutting and drilling speed
2.Long life, stable performance
3.Low power consumption
4.Professional OEM, superior grade quality, more than 5years manufacturing experience
5..CE: ISO: 9001: 2000


NMLC Impregnated dry diamond core bit 6 inch for hard rock





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Sales Manager: Cindy Tang

Mobile/Whatsapp/Wechat :+86-18274862632 (online support)

Skype: tangjingjing31



Contact Details
Changsha Changtan Geological Equipment Co.,Ltd

Contact Person: Ms. Cindy Tang

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