Drag Bit Manufacturer in China
When drilling in soft soil formations, every minute of downtime represents a net loss in cost, making the selection of the right drill bit crucial. EnSheng’s drag bit series is designed to address these challenges, providing the best return on investment in soft to medium-soft, unconsolidated formations (clay, sand, mud, shale), significantly reducing your drilling “cost per foot.”
Maximize your drilling efficiency with high-performance drag bit.
Common types of Drag Bit
The effectiveness of a drag bit is defined by its design, with different types engineered to excel in specific geological conditions. We engineering team can also produce custom-sized bits to your exact specifications, ensuring perfect compatibility and optimal drilling efficiency.
Step Drag Bit
Step-shaped blade layout enhances directional stability
Chevron Drag Bit
V-shaped blade provide higher chip removal efficiency
Alloy Drag Bit
Welded carbide, an economical choice for soft formations
PDC Drag Bit
Equipped with PDC cutting teeth, offering high drilling speed and long service life
Concave PDC Drill Bit
The drill bit crown features a concave design for self-centering and straighter drilling
Custom Drag Bit
Designed to meet specific operating conditions and maximize performance
Drag Bit Selection Guide
Choosing the right drag bit is crucial to the success of your drilling project. With our expert advice, you can confidently select the most efficient and cost-effective drill bit for your project.
| Your formation / goal | Recommended type | Why it works | Notes |
| Loose sand / soft clay, prioritize fastest ROP | Step Drag Bit | Stable, aggressive scraping | Best in clean soft formations |
| Mixed soil, soft sandstone, pebbles, prioritize bit life | Chevron Drag Bit | Better durability & cuttings evacuation | Good balance of ROP & life |
| Budget projects in soft formations | Alloy Drag Bit | Economical carbide option | Lower cost entry |
| Need higher speed + longer service life | PDC Drag Bit | PDC cutters for higher efficiency | Better in consistent formations |
| Need straighter holes / self-centering | Concave PDC Bit | Concave crown improves centering | Useful for directional control |
| Special conditions / non-standard rigs | Custom Drag Bit | Tailored geometry & connection | Send your rig + geology |
Field Tips to Get Maximum ROP
This section provides actionable, field-tested advice.
Prevent bit balling in sticky clay
Optimize fluid viscosity + maintain adequate flow rate.
Keep hole straight in sticky clay
Choose concave/self-centering design when deviation is critical.
If cuttings evacuation is poor
Prefer chevron/V-blade design for better chip removal.
Common sizes
Our drag bits are available in a comprehensive range of sizes to suit any project scale, from small-diameter pilot holes to scale bores.
100mm
Small diameter drilling
152mm
Main specification for domestic drinking water wells.
178mm
Large-volume water wells
203mm
Medium Farmland irrigation
250mm
Industrial wells and bridge pile foundations.
350mm
Heavy infrastructure.
Common sizes
Our drag bits are available in a comprehensive range of sizes to suit any project scale, from small-diameter pilot holes to large-scale bores.
Rugged and Reliable, No Moving Parts
Unlike complex tricone bit, our drag bit feature a design with no moving parts. This means there are no bearings or roller cone cutter parts, significantly reducing the risk of field failures and extending service life.
Achieve High-Speed Drilling in Soft Formations
Drag bit drill by “scraping” the formation with their fixed cutting blades. This unique working method performs exceptionally well in soft to medium-soft formations such as clay, enabling higher mechanical drilling rates.
Excellent Cost Efficiency
Due to their simple design, drag bit are cheaper to manufacture, allowing you to purchase them at a highly competitive price. This also means lower fuel consumption and fewer labor hours. In short, choosing our drag bit allows you to achieve a high return on investment with lower costs in suitable formations.
Customization available, highly adaptable
We can customize different types and sizes of drag bit based on your specific geological report and equipment parameters, ensuring that the tools you receive perfectly match your engineering needs and deliver optimal performance.
Technical parameters of Drag Bit
Review these critical specifications to select the right drag bit, precisely engineered for optimal performance and compatibility.
| Parameter | Specification / Description |
| Common Diameters | 3″, 4″, 5 1/2″, 6 1/2″, 8 3/4″ etc. |
| Cutting Teeth | PDC Cutters or Tungsten Carbide Inserts |
| Common Blade/Wing Count | 3-wing, 4-wing, 5-wing etc. |
| Connection Types | API Reg, IF, NC |
| Suitable Formations | Recommended for soft to medium-soft clay,sand, mud and soft rock etc. |
Where can our Drag Bit be used?
Engineered for remarkable versatility, our drag bits excel in a wide array of applications, primarily in soft to medium unconsolidated formations like sand, clay, and shale.
Water Well & Geothermal
Enables efficient drilling in various soils and soft rocks using fixed cutting teeth.Improves work efficiency.
Geotechnical & Environmental
Provides stable and reliable tools for drilling and sampling, ensuring smooth project progress.
Building & Foundations
Robust design capable of handling various foundation conditions from clay to soft rock.
The Manufacturing Secrets Behind Superior Performance
Why are our drill bits more durable? It’s no secret. We insist on using premium materials and rigorous processes, and we’re revealing it all to you.
Selecting the Most Suitable Materials
The drill bit body is forged from rigorously heat-treated 42 chromium-molybdenum alloy steel, ensuring maximum toughness and strength under extreme torque and load. We select the ideal material for your specific drilling conditions, maximizing the drill bit’s durability and efficiency.
Starting with Customized Drawings
We believe precision begins with design. We offer free customized drawing services to ensure your drill bit design perfectly matches your project needs and geological conditions, guaranteeing accurate operation from the outset.
Consistent Quality Control
The drill bit body is forged from rigorously h“Quality First” is our guiding principle. From raw material warehousing to finished product delivery, we have established a robust quality control process, ensuring that every drilling tool is stable, reliable, and efficient through rigorous inspections.
More Than Just a Supplier, Your Drilling Partner
Choosing EnSheng means choosing a partner who deeply understands your business pain points. We offer more than just drill bits; we provide the guarantee for smooth project execution.
Expert Support: Unsure which drill bit is right for your formation? Our engineers are ready to help you analyze conditions and select the right bit. You’ll be speaking with true drilling experts.
Fast Delivery: Our warehouse maintains a large inventory of standard sizes. Most standard orders can be shipped quickly, minimizing your rig downtime.
Long-Term Commitment: From pre-sales consultation to robust after-sales support, we provide comprehensive service. We are more than just a supplier; we are your trusted long-term partner.
Your Questions, Answered
Here are answers to some common questions from our clients. If you don’t see your question here, our team is ready to help.
If your primary formation is loose sand, clay, or other soft formations, and you require the fastest drilling speed, choose Step. If you are dealing with hard soil, soft sandstone, or mixed formations containing pebbles, and you prioritize bit life, choose Chevron.
Please provide the required drag bit diameter, the type and size of the connecting threads, the desired number of blades, and the geological conditions you will be drilling. If you have design drawings, that would be ideal.
For standard-sized drag bit, we usually have stock for fast shipping. Lead time for custom products depends on the complexity of the design, but we will provide a clear timeline and adhere to it strictly.
No. Drag bit are best suited for soft to medium-hard rock formations, such as soil and clay. They may not perform well in hard rocks.
Call Us or Fill Out the Form Below
Our service team will reply to you within 1 business day.
+86 13673277680
+86 13673277680
info@enshengbit.com
Office Address：Economic Development Zone (West Area), Hejian City, Hebei Province, China
Boost Your Business with EnSheng!
Send us a message if you have any questions or need a quote. Our experts will respond within 24 hours and help you select the right bits for your needs.
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