Basic Specifications
Technological
Newly Developed
Material
Special Alloy Steel, Diamond, Carbide
Features
Fast Speed, High Efficiency
Application
Geological Exploration, Rock Sampling
Transport Package
Carton or Wooden Box
Capacity
5,000,000 pieces/Year
Product Description
The PDC core bit, also known as a hollow bit or thin tubular multi-toothed bit, features a drill body inlaid with high-grade carbide plates. It is designed specifically for core-taking to obtain complete stratigraphic decomposition data during exploration, development, and construction.
Key Objectives of Coring:
- Analyze strength and abrasiveness of formations to guide drilling operations.
- Understand the distribution of oil, gas, and water in target formations.
- Calculate porosity, permeability, and oil/gas saturation for effective thickness evaluation.
Our PDC core bits are available in various labial shapes tailored for complex rock formations: Flat, Bread, Cut, Fan, and Helmet types. Each shape offers specific advantages, balancing drilling speed and wear resistance.
Technical Parameters
| ITEM | OD | ID | Height | Teeth NO. | Core Barrel |
| 75# | 75 | 54.5 | 95 | 4/9 | 73 |
| 94# | 94 | 74 | 120 | 6 | 89 |
| 113# | 113 | 89 | 120 | 8 | 108 |
| 133# | 133 | 109 | 130 | 10 | 127 |
| 153# | 153 | 129 | 145 | 12 | 146 |
| 171# | 171 | 147 | 145 | 14 | 168 |
| 200# | 200 | 174 | 150 | 16 | 194 |
| 219# | 219 | 193 | 150 | 18 | 219 |
| 245# | 245 | 219 | 200 | 20 | 425 |
| 275# | 275 | 249 | 200 | 22 | 273 |
| 325# | 325 | 299 | 200 | 24 | 325 |
Strata Grading Instructions
Grade 1-2
Loose soil, peat, clay, sand, kaolin.
Grade 3-4
Soft/Softened rocks: Shale, slate, oil shale, limestone.
Grade 5-7
Medium hard rock: Gravel layers, schist, silicified limestone.
Grade 8-11
Hard rock: Basalt, diabase, granite, granodiorite, quartzite.
Level 12
Hardest Rocks: Jasperite, Corundum, Quartz, Flint.
Advanced Production Process
1. Steel Blanking
2. Thread Machining
3. Alloy Groove Milling
4. Alloy Welding
5. Compact Welding
6. Appearance Sanding
7. Painting
8. Packed & Shipped
Applications & Why Choose Us
Our tools are widely used in water wells, geological exploration, mining, and civil infrastructure. We provide optimized solutions for rock core drilling, soil testing, and large-mouth engineering projects.
- Expert Engineering: Top-tier engineers for tricone and PDC bits.
- Global Standards: Advanced CNC equipment with SGS & ISO certification.
- Proven Experience: 10+ years serving 40+ countries.
- DIY Customization: Tailored designs based on rock formation data or drawings.
Packaging & Delivery
| Packaging |
Wooden Box; Fumigation Tray if necessary; Custom special packages. |
| Delivery |
In stock: 1 week; Out of stock: Depends on quantity. Transportation via Sea or Air. |
| Payment |
T/T, L/C, D/A, D/P, Western Union, MoneyGram. |
Purchase Process
Frequently Asked Questions
Q1: What are the main advantages of PDC core bits?
A: PDC core bits provide high efficiency and fast drilling speeds compared to traditional bits, especially in exploration and sampling projects.
Q2: Can I get a customized size for my specific project?
A: Yes, we support DIY customization. Please provide your rock formation details or technical drawings for a tailored solution.
Q3: How do I choose between different labial shapes like Flat or Bread?
A: Flat, Cut, and Fan shapes are optimized for fast drilling, while Bread and Helmet shapes offer superior wear resistance in abrasive conditions.
Q4: What is the hardness range these bits can handle?
A: Our bits are suitable for a wide range of strata, from Grade 1 (loose soil) up to Level 12 (hardest rocks like Quartzite and Jasperite).
Q5: Do you provide samples before a large order?
A: Some samples can be provided free of charge to ensure the quality meets your project requirements.
Q6: What is the typical lead time for delivery?
A: Items in stock are usually delivered within 1 week. For custom or bulk orders, the timeline depends on the specific order quantity.
Elliott Cutters
