Product Overview
3060D-22B Hard Rock Fluted Rotary Drilling Bullet Tooth
The 3060D-22B Hard Rock Fluted Rotary Drilling Bullet Tooth is a high-performance rock cutting tooth engineered for hard rock formations, abrasive geological conditions, unweathered granite, and deep foundation drilling applications.
Designed for demanding rotary excavation environments, the 3060D-22B features an enlarged Ø60mm fluted head design with optimized debris discharge grooves, improving cutting removal efficiency while reducing friction and wear between the tooth body and holder.
Built with a standard Ø30mm shank system and Ø38mm step collar, this rotary drilling tooth provides a 75mm gauge length and 135mm overall length for improved penetration depth and drilling stability.
The tooth integrates a high-impact Ø22mm coarse-grain tungsten carbide insert, delivering excellent fracture resistance and rock-crushing performance. Combined with the reinforced Ø60mm head structure and fluted body design, the 3060D-22B provides stable drilling performance in challenging rock conditions.
Manufactured from forged 42CrMo alloy steel, this hard rock rotary drilling bullet tooth offers high strength, durability, and reliable service life for professional foundation drilling contractors worldwide.
Technical Specifications
| Specification | Details |
|---|---|
| Product Model | 3060D-22B |
| Product Type | Hard Rock Fluted Rotary Drilling Bullet Tooth |
| Carbide Tip Diameter | Ø22mm Tungsten Carbide Insert |
| Head Diameter | Ø60mm Fluted Head |
| Shank Diameter | Ø30mm |
| Step Collar Diameter | Ø38mm |
| Gauge Length | 75mm |
| Overall Length | 135mm |
| Body Material | Forged 42CrMo Alloy Steel |
| Heat Treatment | HRC 48-52 |
| Design Feature | Fluted Debris Discharge Grooves |
| Rotation Type | 360° Self-Rotating Design |
| Application | Hard Rock Drilling, Foundation Piling, Deep Excavation |
Key Features & Performance Advantages
1. Ø60mm Fluted Head Design for Efficient Cutting Clearance
The enlarged Ø60mm head body provides additional protection and structural support during rock drilling.
Integrated debris-discharge grooves help:
- Improve cutting evacuation
- Reduce material buildup
- Lower drilling resistance
- Minimize holder wear
This fluted design improves drilling efficiency in hard and abrasive formations.
2. Ø22mm Coarse-Grain Tungsten Carbide Tip
The premium Ø22mm tungsten carbide insert delivers strong rock-crushing capability and impact durability.
The coarse-grain carbide structure provides:
- High fracture toughness
- Excellent impact resistance
- Stable penetration performance
- Reduced carbide chipping
Suitable for:
- Granite
- Hard sandstone
- Unweathered rock
- Dense geological formations
3. Reinforced Ø60mm Steel Body Protection
The wide head structure provides strong support around the carbide insert.
Advantages include:
- Improved impact absorption
- Better carbide seat protection
- Reduced body deformation
- Longer operating life
The reinforced design helps maintain consistent drilling performance under high torque conditions.
4. Optimized 75mm Gauge Length
The 75mm gauge length with 135mm overall length provides an effective balance between penetration depth and cutting clearance.
Benefits include:
- Faster chip removal
- Reduced re-cutting of debris
- Improved drilling speed
- Stable excavation performance
5. Forged 42CrMo Steel Body & 360° Rotation
The tooth body is manufactured from high-strength 42CrMo alloy steel and precision heat-treated.
The forged structure provides:
- High fatigue resistance
- Excellent bending strength
- Superior torque performance
The self-rotating design inside standard Ø30mm holders ensures:
- Uniform wear
- Self-sharpening action
- Longer service life
Applications & Compatible Equipment
应用程序及兼容设备
The 3060D-22B Hard Rock Rotary Drilling Bullet Tooth is widely used in professional foundation drilling and heavy civil construction.
Typical Applications:
- Offshore bridge foundations
- Wind turbine foundation projects
- High-load civil engineering
- Deep foundation piling
- Hard rock excavation
- Large infrastructure projects
Compatible Equipment:
Suitable for:
- Rotary drilling rigs
- Heavy core barrels
- Rock buckets
- Reaming tools
- Foundation drilling attachments
Why Choose 3060D-22B Hard Rock Rotary Drilling Tooth?
为什么选择 3060D-22B 硬岩旋转钻钻头？
✔ Ø60mm fluted head design for efficient debris removal
✔ Ø22mm tungsten carbide tip for powerful rock penetration
✔ Reduced cutting resistance in hard formations
✔ Forged 42CrMo steel body for durability
✔ Designed for granite, hard rock, and abrasive strata
✔ Smooth self-rotation for uniform wear
✔ Compatible with standard Ø30mm rotary drilling holders
