DCDMA Standard Impregnated Diamond Core Drill Bit Crown Height 12mm
DCDMA Standard Impregnated Diamond Core Drill Bit Crown Height 12mm
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Basic Infomation
Place of Origin: China
Certification: CE, ISO9001-2000
Model Number: HQ
High Light:

diamond core drill bit


diamond products core bits

Payment & Shipping Terms
Packaging Details: Sea Worthy Package
Delivery Time: 5-7 Working Days
Payment Terms: T/T, L/C, Western Union
Material: Synthetic Diamond, Natural Diamond
Available Size: Q Series, T2 Series, T6 Series
Crown Profile: Standard
Waterways: Standard /Face Discharge /Turbo /Spiral
Thread: DCDMA Standard
Color: Black
Applicaion: All Conventional And Wireline Core Barrel
Use: Mining Exploration Diamond Drilling
Product Description

DCDMA Standard Impregnated Diamond Core Drill Bits Crown height 12mm​


SINOCOREDRILL impregnated diamond bits are manufactured using high quality raw materials for optimum drilling performance. As a result of our personnel's more than 40 years of experience in the drilling Industry,We can recommend the optimum design for optimum performance in a variety of applications and conditions. Various face profiles, bonds and diamond qualities are available for superior coring performance and longer bit life resulting in fewer trips in and out of the hole, reducing costs and improving production.


The impregnated diamond bits are the most commonly useful bits in the mineral exploration industry, as they have the widest range of application. The carefully selected grades of high quality synthetic diamond are distributed in the depth of impregnated bit's matrix series. The matrix layer of the ZM contains a uniform distribution of these crystals that are embedded in a powdered metal bond.

The matrix of our impregnated bits is designed to expose new diamonds to the bits cutting face as wear occurs. Fast penetration rate is maintained as a result of this action.

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.


1. ISO9001certificated
2. 10years manufacturing experience
3. Super antiwear characteristic
4. Super long lifetime
5. Solid quality




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




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


DCDMA Standard Impregnated Diamond Core Drill Bit Crown Height 12mm 0

DCDMA Standard Impregnated Diamond Core Drill Bit Crown Height 12mm 1








Warranty and Service


We always concerned about our clients and provides them with warranty and service support.


The factory ensures equipment warranty for the major assemblies and units efficient for 12 months. The clients are supplied with all needed spare parts, tooling and auxiliary facilities.


The authorized dealers possess service centers to execute product warranty liabilities, after-sales service and equipment repair. The clients’ staff is also provided with theoretical and practical company instructions and consultations on all matters concerning execution of work and equipment operation.





DCDMA Standard Impregnated Diamond Core Drill Bit Crown Height 12mm 2

Q:Are you trading company or manufacturer ?

A: We are a specialized manufacturer.


Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.


Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

T/T, L/C, Western Union.


Q: What are your main products, and used for?
A: Our products include core bit, PDC bit, reaming shell, core barrel, casing, drill rod, drill rig and other drilling parts.
They are used for mineral exploration, geological drilling, geotechnical engineering and soil sampling.

Q: How about the delivery terms?
A: Min. order quantity: 1 piece. Transportation: By DHL/TNT/Fedex express, air, sea, train.

Q: How about discount?
A: Price is based on products and order quantity.

Q: Do you accept sample order?
A: Yes sure, please contact us for details.

Q: How about your after-sales service?
A: As a manufacturer, we offer promote technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.

Q: Where is your factory located in?
A: Our factory is located in Jiangyin city,Jiangsu province, China.

Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products, Sinocoredrill usually makes a serious inspection for all products and raw materials in strict procedure



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Get in touch with us
Contact Person : Mr. Yuan Qi
Tel : +86-13912498528
Fax : 86-510-82752846
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