

PDC Mining Core Drill Bit for Geological Exploration
PDC Mining Core Drill Bit is designed for geological exploration, mineral exploration and rock core sampling in soft to medium sedimentary formations.
The bit uses high-quality PDC/PCD cutting elements to provide fast penetration, strong wear resistance and stable core drilling performance. Different cutter sizes, quantities and core bit standards can be selected according to drilling system and formation conditions.
Available in BQ, NQ, HQ, PQ and customized wireline core drilling sizes, with PDC cutter options such as 1304 and 1308.
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Description
PDC Mining Core Drill Bit for Geological Exploration and Rock Core Sampling
PDC Mining Core Drill Bit is designed for geological exploration, mineral exploration and rock core sampling in soft to medium sedimentary formations.
The bit uses high-quality PDC/PCD cutting elements to provide fast penetration, strong wear resistance and stable core drilling performance. Different cutter sizes, quantities and core bit standards can be selected according to drilling system and formation conditions. Available in BQ, NQ, HQ, PQ and customized wireline core drilling sizes, with PDC cutter options such as 1304 and 1308.
Type PDC / PCD Core Bit | Standard DCDMA / Wireline Core Barrel | NQ Reference OD 75.31 mm / ID 47.63 mm |
Application Geological / Mineral / Mining Exploration | Formation Soft to Medium Sedimentary | PDC Cutter 1304 / 1308 / Customized |
Fast penetration and stable core drilling performance
Six design advantages behind the PDC Mining Core Drill Bit.
01 / 06 Fast PenetrationThe PDC cutting structure provides efficient shearing action and fast penetration in suitable soft to medium formations. | 02 / 06 Strong Abrasion ResistancePDC cutters provide good wear resistance and maintain cutting performance during continuous drilling. | 03 / 06 Wireline Core Drilling CompatibleAvailable in common BQ / NQ / HQ / PQ core drilling systems. |
04 / 06 Custom Cutter ConfigurationCutter size and quantity can be adjusted according to bit diameter and formation conditions. | 05 / 06 Reliable Core RecoveryThe cutting structure is designed for stable core drilling and geological sampling. | 06 / 06 Custom ManufacturingDiameter, cutter arrangement, connection and core barrel matching can be customized. |
Focused on geological, mineral and mining exploration
The PDC Mining Core Drill Bit is focused on core drilling applications requiring continuous rock core sampling. It is not intended for the very broad range of applications sometimes listed for all PDC bits.
01 Khảo sát địa chấtCore sampling for geological mapping, stratigraphic and structural investigation. | 02 Mineral & Mining ExplorationCore drilling for mineral deposit evaluation and mining exploration programs. |
03 Rock Core SamplingContinuous core recovery for laboratory testing and geological interpretation. | 04 Geotechnical & Engineering InvestigationGeotechnical investigation, engineering geological drilling and water well geological investigation. |
Suitable Rock Formations
⚠️ Note: Final core bit selection should consider rock hardness, abrasiveness, fracture conditions, drilling depth, core barrel system and operating parameters. |
PDC Core Bit vs Impregnated Diamond Core Bit
PDC and impregnated diamond core bits are suited to different formations and drilling priorities. The correct choice depends on formation hardness, abrasiveness, drilling interval length and required penetration rate.
PDC Core Bit Better suited when:
| Impregnated Diamond Core Bit Better suited when:
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NQ reference size and product parameters
NQ reference dimensions are shown below. Other sizes and customized dimensions are available on request.
| Parameter | Specification |
|---|---|
| Core Bit Standard | NQ |
| Outside Diameter | 75.31 mm |
| Inside Diameter | 47.63 mm |
| Reamer Outside Diameter | 75.7 mm |
| PDC Cutter | 1304 / 1308 / Customized |
| Cutter Quantity | 4 / 5 / 6 / 8 / Customized |
| Drilling System | Wireline Core Barrel |
| Standard | DCDMA |
Wireline core bit sizes
Common wireline core bit sizes are listed below. Actual supply depends on project requirement — please confirm the specific size before ordering.
BQ | NQ | HQ | PQ |
Other wireline core drilling sizes and customized dimensions are available on request. | |||
Cutter size and quantity matched to formation
Final cutter quantity should be selected according to bit diameter, formation hardness, abrasiveness and required penetration rate.
| Cutter Size | Typical Application |
|---|---|
| 1304 | General engineering and formation-specific configurations. |
| 1308 | General engineering and formation-specific configurations. |
| Customized | Available where a specific cutter size is required for the formation and drilling conditions. |
4 Cutters | 5 Cutters | 6 Cutters | 8 Cutters | Customized |
How to select the right PDC mining core bit
For an accurate recommendation, please provide the following information. If you do not know the specific model, send us your current core barrel or drill bit photo and our team can help identify the correct size.
01 Core Bit Standard BQ / NQ / HQ / PQ or other required standard. | 02 Rock Formation Sandstone / shale / mudstone / coal / soft limestone, etc. | 03 Formation Hardness Formation hardness and abrasiveness level. |
04 Required Core Diameter Required core diameter and bit dimensions. | 05 Drilling Depth & Core Barrel System Drilling depth and core barrel system used. | 06 Preferred PDC Cutter Size & Rig Information Preferred cutter size and drilling rig information. |
Send us your current core barrel or drill bit photo and our team can help identify the correct size and recommend a suitable PDC cutter configuration.
Customized PDC mining core bit solutions
Every core drilling project is different. We can customize the core bit according to your core barrel system, formation and drilling requirements.
From core bit size and cutter configuration to crown structure and waterway design, core bits can be configured according to specific project conditions. Our engineering team works with your technical data to recommend the most suitable cutter layout and core bit structure.
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Professional drilling tools manufacturer in China
Chenghui Drilling specializes in drilling tools and customized drilling solutions for water well, mining, geological exploration, geothermal and construction applications. Our product range includes PDC Drill Bits, PDC Core Bits, Diamond Core Bits, Alloy Drag Bits, Tricone Drill Bits, DTH Drilling Tools and Drilling Equipment. From core bit size and cutter configuration to crown structure and formation requirements, drilling tools can be configured according to specific project conditions.
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Need a customized PDC Mining Core Drill Bit?
Share your core drilling requirements with our engineers. We will recommend a suitable core bit size, PDC cutter layout and crown structure, and provide a factory quotation within 24 hours.
| 1. Core Bit Standard (BQ / NQ / HQ / PQ) | 2. Rock Formation & Hardness |
| 3. Required Core Diameter | 4. Core Barrel System & Rig Information |
FAQ
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What is a PDC Mining Core Drill Bit?
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What formations are suitable for PDC core bits?
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3
What sizes are available?
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What PDC cutter sizes can be used?
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What information should I provide before ordering?
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• Core bit size
• Rock formation and formation hardness
• Drilling depth
• Core barrel system
• Drilling rig information
If the exact model is unknown, you can send us photos or dimensions of your current core barrel or drill bit.
Downloads
| File | Download |
|---|---|
| CNC-Machining-Center.pdf | Download |












