New Product Launch: 4-Blade Arc-Profile PDC Oil Drill Bit for Multi-Formation Applications
We are proud to introduce our newly developed 4-Blade Arc-Profile PDC Oil Drill Bit, engineered for high efficiency, durability, and multi‑formation adaptability. Designed with a tungsten carbide alloy steel body and optimized spiral blade structure, this new generation PDC bit delivers stable drilling performance in both water and air drilling operations.
This product is specially developed for open‑pit mining, slope stabilization, anchor hole drilling, foundation construction, water wells, and shallow geothermal drilling—especially in fractured and variable formations.
Engineered for Strength: Tungsten Carbide Alloy Steel Body
The 4‑blade PDC drill bit is manufactured using an integrated casting process with tungsten carbide alloy steel. The one‑piece structure eliminates welding seams and improves structural integrity.
Key benefits:
- High compressive strength
- Superior wear resistance
- Strong impact resistance
- Reduced deformation risk in fractured formations
Compared with conventional steel body bits, this reinforced body significantly extends service life and reduces replacement frequency, helping contractors minimize downtime and operating costs.
4-Blade Arc Profile Design: Impact Resistance and Stability
The distinctive four‑blade arc cutting structure enhances shock absorption during drilling. The curved blade geometry distributes impact loads more evenly, reducing the risk of:
- PDC cutter chipping
- Blade breakage
- Uneven radial vibration
The symmetrical 4‑blade configuration ensures balanced cutting forces, resulting in smoother hole walls and reduced deviation. This makes it particularly suitable for granite fractured layers and mixed formations.
Spiral Blade Structure: Efficient Cuttings and Fluid Removal
One of the most important upgrades in this model is the spiral blade and flow channel design.
During drilling:
- Water and drilling fluids are discharged efficiently
- Rock cuttings are transported out quickly
- Bit balling risk is reduced
- Mud blockage is minimized
The spiral design ensures continuous drilling efficiency in both:
✔ Water drilling (mud or clean water circulation)
✔ Air drilling (compressed air cuttings removal)
This dual compatibility increases flexibility on job sites where water supply may be limited.
Flexible PDC Cutter Configuration for Multi-Formation Use
The bit can be customized with different PDC cutter types based on formation conditions:
- Soft formations (clay, backfill soil, mudstone): high cutting‑efficiency cutters
- Medium-hard formations (sandstone, limestone): wear‑resistant cutters
- Hard fractured formations (granite fractured zones): impact‑resistant cutters
This flexible configuration makes the bit suitable for a wide range of formations from soft to medium‑hard conditions.
Note: Not recommended for extremely hard intact formations (F > 11) or highly abrasive extreme geological conditions.
Water and Air Drilling Compatible
Unlike conventional bits designed for a single drilling method, this 4‑blade PDC bit supports both rotary water drilling and rotary air drilling.
Water drilling:
- Suitable for cooling‑intensive environments
- Spiral structure improves slurry discharge
- Enhances cutter cooling and wear resistance
Air drilling:
- Suitable for dry or water‑scarce conditions
- Requires proper WOB and RPM control to prevent overheating
- Maintains stable penetration rate
This dual‑use capability reduces the need for tool changes and improves operational efficiency.
Application Scenarios
The 4‑Blade Arc‑Profile PDC Oil Drill Bit is widely used in:
- Open‑pit mining blast hole drilling
- Anchor cable hole drilling
- Slope reinforcement drilling
- Support engineering projects
- Foundation pit drilling
- Water well drilling
- Shallow geothermal wells
It performs particularly well in fractured formations and mixed geological structures.
Available Sizes and Thread Options
Standard Bit Diameters (mm):
115 / 125 / 133 / 152 / 165 / 171 / 200 / 220 / 250
Custom non‑standard diameters and special lengths are available upon request.
Thread Types:
- REG Threads: 2 3/8”, 2 7/8”, 3 1/2”, 4 1/2”
- NC Threads: NC23, NC26, NC31, NC38
- Other Options: Z‑50 thread and customized thread connections available.
Custom Engineering Services
We offer tailored configuration services based on formation characteristics and drilling requirements:
- Customized PDC cutter layout
- Optimized spiral channel design
- Special thread adaptation
- Non‑standard size production
- Formation‑specific wear optimization
Our engineering team works closely with contractors to ensure optimal drilling performance in real working conditions.
Conclusion
The new 4-Blade Arc-Profile PDC Oil Drill Bit represents a practical solution for contractors facing complex and fractured formations. With its reinforced tungsten carbide alloy body, spiral discharge system, and flexible cutter configuration, it delivers stable performance across multiple drilling environments.
Designed for efficiency, durability, and adaptability, this bit helps reduce downtime, improve hole quality, and control project costs.
Ready to optimize your drilling performance?
Contact our engineering team for technical specifications or customization inquiries.
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