Core Drilling Tools
Your Professional Core Drilling Tools Supplier
ASDRILL Exploration Machinery MFG Co., Ltd. was established in 2019, is a high-tech enterprise specializing in the research, development, production, and sales of core drilling rigs for geological and mineral exploration. Today, ASDRILL has completely transformed fully hydraulic core drill rigs from a single prototype in the R&D phase to large-scale commercialization with a diversified, serialized product portfolio. ASDRILL has emerged as a globally recognized supplier of Hydraulic core drill rigs.
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Impregnated Diamond Core BitsMaximize ROP & bit life in abrasive formations. ASDRILL's impregnated diamond core bits offerAdd to Inquiry
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Drill Rods & CasingASDRILL manufactures drill rods and casing with various thread types to meet your diamond coreAdd to Inquiry
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Impregnated Diamond BitsDesigned for hard, abrasive formations, ASDRILL impregnated diamond core bits useAdd to Inquiry
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PDC Core BitsASDRILL PDC core bits are designed for mineral exploration & geological exploration. The surface ofAdd to Inquiry
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TSP BitsASDRILL TSP coring drill is designed for geological exploration and mineral exploration. It is anAdd to Inquiry
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Reaming ShellA diamond reaming shell, also called a reamer shell, features natural or synthetic diamonds and isAdd to Inquiry
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Core Barrel SystemIn the fields of mineral resource exploration, deep geological research, etc., diamond drilling hasAdd to Inquiry
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OvershotIn rope coring drilling operations, the safe recovery of core tubes is a key link to ensureAdd to Inquiry
Why Choose Us
Certificates
With standardized management, superior product quality, and a sincere service philosophy, we have been awarded numerous AAA-level integrity management certificates and have earned recognition from the market and our customers.
Our services
Our team of experts will recommend the most suitable products according to customer needs and provide detailed consultation, we ensure timely delivery, and we provide long-term service support.
Professional Team
Our experienced R&D team has traveled to renowned mining regions worldwide, studying advanced technologies overseas and learning from global core drilling experts.
Quality Assurance
We guarantee the highest product quality and are committed to delivering exceptional after-sales service to ensure your complete satisfaction.
Advantages of PDC Core Bits
Enhanced Durability
The synthetic diamond layer on PDC cutters ensures exceptional hardness and wear resistance. This layer allows the bits to maintain cutting efficiency over extended periods, reducing downtime and tool replacement costs.
Improved ROP (Rate of Penetration)
Thanks to their efficient cutting action, PDC bits deliver faster drilling speeds than traditional bits. This results in lower operational costs and increased productivity.
Versatility
PDC bits are designed to handle various geological conditions, from soft to hard formations. Their adaptability makes them ideal for use in diverse industries, such as oil and gas, geothermal energy, and construction.
Reduced Vibrations
The design of PDC bits minimizes vibrations during drilling, resulting in smoother operations and less wear on the drilling equipment.

Heavy Duty: A heavy-duty reaming shell helps prevent undercutting in broken conditions
Cylindrical Structure: It is perfect for stabilizing, enlarging, and drilling holes.
Power Source: It provides the force required to rotate reaming shells.
Diamond Impregnated Pad: This feature enables using large synthetic diamonds to enhance wear life and eliminate the need to use specialty shells of diamond drilling tools during diamond exploration.
Diamond Grit Surface: This feature ensures efficiency and hole stability during the drilling process.
Diamond Ground: It reduces size variation and improves stability, producing long-lasting reaming shells.
Dual Pad: It allows getting straighter holes if the deviation is a huge concern. This feature should be considered when choosing reaming shells for your application, most especially if you’re dealing with deviated holes.
Technical Parameters
|
Size |
Outer Diameter |
|
|
In. |
Mm |
|
|
AQ |
1.895 |
48.1 |
|
BQ |
2.365 |
60.1 |
|
NQ |
2.985 |
75.8 |
|
HQ |
3.782 |
96.1 |
|
PQ |
4.835 |
122.8 |
|
NQ3 |
2.985 |
75.8 |
|
HQ3 |
3.782 |
96.1 |
|
PQ3 |
4.835 |
122.8 |
Fixed Cutter PDC Bits
These bits have a static design with no moving parts, which enhances their stability and reliability. They are ideal for soft to medium-hard formations.
Matrix-Body PDC Bits
Matrix-body PDC bits feature a robust structure with superior erosion and impact resistance. These drill bits are commonly used in abrasive formations.
Steel-Body PDC Bits
These bits offer high strength and toughness, making them suitable for drilling in challenging conditions such as hard and abrasive rock formations.

Maintenance of PDC Core Bits
Regular Inspection
Frequent wear, damage, and cutter integrity checks can help prevent premature bit failure.
Proper Storage
Store PDC bits in a clean and dry environment to avoid corrosion and ensure their longevity.
Optimal Operating Conditions
Follow manufacturer guidelines on WOB, RPM, and hydraulic parameters to maintain peak performance and extend bit life.
Applications of PDC Core Bits
Oil and Gas Exploration
PDC Core Bits are a cornerstone of oil and gas drilling. They offer high efficiency in both vertical and directional drilling and are particularly effective in shale, sandstone, and limestone formations.
Geothermal Drilling
The extreme heat and pressure conditions of geothermal wells require durable and heat-resistant tools. PDC bits excel in these environments, providing reliable performance and longevity.
Mining Operations
PDC Core Bits are used in mining operations to drill through hard rock formations, ensuring faster penetration rates and reduced operational downtime.
Construction Projects
PDC Core Bits are also valuable for drilling foundation piles and other structural elements in construction.
Application of Reaming Shell
Enlarging and Stabilizing: As the drill bit cuts the core sample, the reaming shell, which is positioned just above it, cuts the hole to a precise and consistent diameter. This action reams the borehole to its nominal diameter, preventing the hole from becoming conical or narrow.
Preventing Stuck Barrels: The reaming shell's cutting action helps to prevent the core barrel from getting stuck in a smaller diameter hole.
Improving Core Recovery: By smoothing the walls of the borehole and removing cuttings, the reaming shell protects the core sample from damage and contamination during retrieval.
Aiding in Alignment: The reaming shell acts as a stabilizer, guiding the core barrel and helping to keep the borehole straight and aligned during drilling.
Facilitating Drilling: The design often includes waterways to circulate drilling fluid and flush out cuttings, maintaining drilling efficiency.
We're professional core drilling tools manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to buy the best core drilling tools for sale here from our factory. For price consultation, contact us.
Coring Drill Rods, Diamond Bits, Diamond Reaming Shell












