Drag Bit
Drag Bits
Alloy Drag Bits are the simplest scraping-type drill bits, breaking soft formations through rotary scraping. Simple structure, low cost, suitable for water well drilling and shallow exploration in soft formations such as clay, sand and soft shale.
Product Overview
Drag bits are among the earliest rotary drilling tools used, with a simple structure consisting of alloy steel blades and connection threads. They break soft formations through blade scraping and crushing action during rotation, offering fast drilling speed and low cost.
Our drag bits are manufactured by certified partner factories using premium alloy steel materials, available in spiral or straight blade designs, suitable for water well drilling, agricultural irrigation, foundation engineering dewatering and many other applications.
Bit Types
Spiral Blade Drag Bits
Spiral design, excellent cuttings evacuation, suitable for cohesive formations
Straight Blade Drag Bits
Straight blade design, simple structure, suitable for sand and gravel formations
Wing-Type Drag Bits
Wide blade design, large breaking area, suitable for large diameter drilling
Reinforced Drag Bits
Thickened blade treatment, suitable for formations with small gravel
Core Advantages
Fast Drilling Speed
High drilling efficiency and speed in soft formations
Low Cost
Simple structure, low manufacturing cost, excellent economy
Easy Maintenance
Simple structure, easy to maintain and replace
Large Diameter Available
Large diameter bits available for different project needs
Technical Specifications
| Parameter | Specification |
|---|---|
| Bit Diameter | 100mm - 400mm (4" - 16") |
| Blade Count | 2 - 4 Pieces |
| Applicable Rock | Soft Formation (f 1-4) |
| Application | Water Wells, Shallow Exploration |
| Body Material | Alloy Steel |
| Connection | API Thread / Flange Connection |
Common Specifications
| Size (inch) | Diameter (mm) | Blade Count | Application |
|---|---|---|---|
| 6" | 152 | 3 | Water wells |
| 6.5" | 165 | 3 | Water wells, irrigation |
| 8" | 203 | 3-4 | Large diameter water wells |
| 10" | 254 | 4 | Large diameter engineering wells |
| 12" | 305 | 4 | Dewatering wells |
Price Range
| Type | Price Range (USD) | Minimum Order |
|---|---|---|
| 6.5" Alloy Spiral Drag Bit | $40-53 | 1 pc |
| Water Well Drag Bit | $49-53 | 1 pc |
Application Areas
Water Well Drilling
Drinking water wells, irrigation water supply
Agricultural Irrigation
Farmland irrigation wells, surface water interception
Foundation Engineering
Foundation pit dewatering, pile guide holes
Formation Exploration
Shallow geological survey, soil sampling
Water Source Projects
Rural water supply, cistern construction
Municipal Engineering
Pipeline construction, pipe jacking guide
