3060D-25B Hard Rock Fluted Rotary Drilling Bullet Tooth

Product Overview

The 3060D-25B Hard Rock Fluted Rotary Drilling Bullet Tooth is a high-performance rock cutting tooth engineered for hard rock formations, unweathered granite, basalt, quartzite, and deep foundation drilling applications.

Designed for demanding rotary drilling operations, the 3060D-25B features an enlarged Ø60mm fluted head design with optimized debris clearance grooves, improving cutting evacuation efficiency while reducing friction and drilling resistance.

The key advantage of this model is its upgraded Ø25mm extra-large coarse-grain tungsten carbide insert, which provides exceptional impact resistance, fracture toughness, and rock-crushing capability compared with standard carbide teeth.

Built with a standard Ø30mm shank system and Ø38mm step collar, this rotary drilling tooth features a 75mm extended gauge length and 135mm overall length, delivering stable penetration performance in challenging geological conditions.

Manufactured from forged 42CrMo alloy steel, the 3060D-25B provides excellent structural strength, wear durability, and reliable service life for professional foundation drilling contractors worldwide.

Technical Specifications

Key Features & Performance Advantages

1. Ø25mm Ultra-Large Tungsten Carbide Tip

The 3060D-25B is equipped with an oversized Ø25mm coarse-grain tungsten carbide insert designed for maximum rock-breaking performance.

The larger carbide tip provides:

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

It is especially suitable for:

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

2. Ø60mm Fluted Head Design

The reinforced Ø60mm outer head structure provides excellent cutting stability while protecting the holder system.

The integrated fluted grooves help:

• Accelerate rock cutting discharge
• Reduce debris accumulation
• Lower drilling resistance
• Improve penetration efficiency

This design ensures smoother drilling performance in hard geological conditions.

3. Optimized 75mm Gauge Length

The 75mm gauge height with 135mm total length provides an effective balance between penetration depth and structural stability.

Advantages include:

• Improved cutting clearance
• Faster chip evacuation
• Reduced re-cutting of rock fragments
• Higher drilling efficiency

4. Forged 42CrMo Alloy Steel Body

The tooth body is manufactured from high-strength forged 42CrMo alloy steel and precision heat-treated.

The robust structure provides:

• Excellent fatigue resistance
• Strong bending strength
• High torque resistance
• Reliable performance under continuous drilling

5. 360° Self-Rotating & Self-Sharpening Performance

Designed for standard Ø30mm rotary drilling holders, the 3060D-25B allows smooth 360° rotation during operation.

The self-rotating system provides:

• Uniform wear distribution
• Continuous self-sharpening effect
• Stable cutting performance
• Extended tooth service life

Applications & Compatible Equipment

The 3060D-25B Hard Rock Rotary Drilling Bullet Tooth is designed for professional foundation drilling and heavy civil construction projects.

Typical Applications:

• Mega bridge foundation projects
• Offshore wind turbine foundations
• High-speed railway infrastructure
• 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 3060D-25B Hard Rock Rotary Drilling Tooth?

✔ Ø25mm oversized carbide tip for maximum rock penetration
✔ Ø60mm fluted head for efficient debris removal
✔ Designed for granite, basalt, quartzite, and hard rock formations
✔ Forged 42CrMo steel body for superior durability
✔ Reduced drilling resistance and improved penetration rate
✔ Smooth self-rotation for uniform wear
✔ Compatible with standard Ø30mm drilling holders