3060E-30 Ultra-Large Carbide Hard Rock Rotary Drilling Bullet Tooth

Product Overview

The 3060E-30 Ultra-Large Carbide Hard Rock Rotary Drilling Bullet Tooth is a premium rock cutting tooth engineered for extreme hard rock formations, unweathered granite, basalt, quartzite, and deep foundation drilling applications.

Designed for high-performance rotary drilling operations, the 3060E-30 features an industry-leading Ø30mm extra-large tungsten carbide insert, providing exceptional impact resistance, fracture toughness, and powerful rock penetration capability.

Built with a reinforced Ø60mm fluted head design, this rotary drilling tooth combines superior cutting strength with optimized debris evacuation. The integrated flutes help remove rock cuttings efficiently, reducing friction, drilling resistance, and unnecessary wear during operation.

The tooth is manufactured with a standard Ø30mm shank and Ø38mm step collar, featuring a 75mm gauge length and 135mm overall length. The unique 1:1 carbide tip-to-shank rigidity design enables efficient impact energy transfer from the drilling system directly into hard rock formations.

Made from forged 42CrMo alloy steel, the 3060E-30 delivers outstanding structural strength, durability, and reliable performance for demanding foundation drilling and heavy civil engineering projects.

Technical Specifications

Key Features & Performance Advantages

1. Ø30mm Ultra-Large Tungsten Carbide Tip

The 3060E-30 features an oversized Ø30mm coarse-grain tungsten carbide insert, designed for maximum rock penetration and impact durability.

Compared with standard carbide teeth, the larger tip provides:

• Higher impact absorption
• Greater fracture resistance
• Increased cutting force
• Longer operating life

It is ideal for:

• Granite
• Basalt
• Quartzite
• Massive bedrock
• High-strength rock formations

2. Ø60mm Fluted Head Design for Efficient Cutting

The reinforced Ø60mm head body provides excellent support for the large carbide insert while maintaining drilling stability.

The optimized fluted structure helps:

• Accelerate rock chip removal
• Reduce material accumulation
• Lower drilling resistance
• Improve penetration efficiency

This design allows smoother operation in challenging rock conditions.

3. 1:1 Carbide Tip-to-Shank Rigidity Ratio

The unique Ø30mm carbide tip and Ø30mm shank alignment creates efficient impact energy transmission.

Benefits include:

• Improved impact transfer
• Reduced energy loss
• Higher rock-breaking efficiency
• Enhanced structural reliability

This makes the 3060E-30 suitable for severe drilling environments.

4. Optimized 75mm Gauge Length

The 75mm gauge length with 135mm overall length provides an excellent balance between penetration depth and cutting clearance.

Advantages:

• Improved drilling stability
• Faster debris evacuation
• Reduced drag resistance
• Lower heat generation

5. Forged 42CrMo Steel Body & Self-Rotation

The tooth body is manufactured from high-strength 42CrMo alloy steel with precision heat treatment.

The forged structure provides:

• Excellent fatigue resistance
• High bending strength
• Superior torque capability
• Long service life

The 360° self-rotation design ensures:

• Uniform wear distribution
• Self-sharpening performance
• Stable cutting efficiency

Applications & Compatible Equipment

The 3060E-30 Hard Rock Rotary Drilling Bullet Tooth is designed for professional foundation drilling and heavy construction applications.

Typical Applications:

• Mega bridge foundations
• Offshore wind turbine foundations
• High-speed railway construction
• Deep rock piling
• Hard rock excavation
• Large-scale civil engineering projects

Compatible Equipment:

Suitable for:

• Rotary drilling rigs
• Heavy-duty core barrels
• Rock drilling buckets
• Roller hybrid drilling tools
• Foundation drilling attachments

Why Choose 3060E-30 Hard Rock Rotary Drilling Tooth?

✔ Ø30mm ultra-large carbide tip for maximum penetration
✔ Ø60mm fluted head for efficient cutting discharge
✔ 1:1 carbide-to-shank rigidity for impact energy transfer
✔ Designed for granite, basalt, quartzite, and hard rock
✔ Forged 42CrMo steel body for superior durability
✔ Smooth 360° rotation for uniform wear
✔ Compatible with standard Ø30mm drilling holders