Product Overview

The 3055C-22 Standard Rotary Drilling Bullet Tooth is a high-performance conical cutting tooth designed for foundation drilling, piling, tunneling, and heavy-duty rotary excavation applications.

Also known as a conical cutter tooth, pick tooth, or tungsten carbide drilling tooth, the 3055C-22 is engineered to deliver reliable cutting performance in hard rock, weathered rock, and abrasive geological formations.

Featuring a premium Ø22mm tungsten carbide tip and a high-strength forged steel body with a standard Ø30mm shank, this rotary drilling tooth provides excellent wear resistance, high penetration efficiency, and extended service life under demanding drilling conditions.

Manufactured from 42CrMo alloy steel and precision heat-treated, the 3055C-22 offers an ideal balance of toughness, impact resistance, and structural strength, making it a reliable choice for professional drilling contractors worldwide.

Technical Specifications

Key Features & Performance Advantages

1. Premium Ø22mm Tungsten Carbide Cutting Tip

The 3055C-22 features a high-performance Ø22mm tungsten carbide insert designed for demanding rock drilling applications.

The cobalt-enhanced carbide grade provides an excellent combination of:

• High impact resistance
• Superior wear durability
• Stable cutting performance
• Longer operating life

It performs reliably in:

• Hard rock
• Medium-weathered rock
• Gravel formations
• Abrasive ground conditions

2. Optimized Conical Head Geometry

The optimized conical cutter design improves rock penetration while maintaining efficient cutting clearance.

With a 70mm head length and Ø55mm collar design, the tooth geometry helps:

• Improve cutting efficiency
• Reduce drilling friction
• Enhance material discharge
• Protect the holder system from excessive wear

This design ensures stable performance during continuous rotary drilling operations.

3. Forged 42CrMo Alloy Steel Body

The tooth body is manufactured from premium forged 42CrMo alloy steel and heat-treated to achieve high mechanical strength.

The robust structure provides:

• Excellent bending resistance
• High fatigue strength
• Strong axial load capacity
• Reliable performance under vibration and impact

4. Advanced Carbide Brazing Technology

High-frequency induction brazing creates a strong metallurgical bond between the tungsten carbide tip and steel body.

This advanced manufacturing process ensures:

• High shear strength
• Secure carbide retention
• Reduced tip loss
• Improved drilling reliability

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

Designed for standard Ø30mm rotary drilling tooth holders, the 3055C-22 allows smooth 360° rotation during operation.

The self-rotating design provides:

• Uniform wear distribution
• Self-sharpening cutting action
• Consistent penetration speed
• Extended tooth service life

Applications & Compatible Equipment

The 3055C-22 Standard Rotary Drilling Bullet Tooth is widely used in foundation engineering and heavy construction projects.

Typical Applications:

• Bridge foundation piling
• Large-diameter bored piles
• Tunnel excavation
• Underground construction
• Railway infrastructure projects
• Hard rock drilling
• Civil engineering works

Compatible Equipment:

Suitable for installation on:

• Rotary drilling rigs
• Core barrels
• Rock drilling buckets
• Double-bottom drilling buckets
• Rock augers
• Foundation drilling attachments

Why Choose 3055C-22 Rotary Drilling Bullet Tooth?

✔ Premium Ø22mm tungsten carbide cutting performance
✔ Conical tooth design for efficient rock penetration
✔ High-strength 42CrMo alloy steel body
✔ Excellent wear resistance in abrasive formations
✔ Reliable performance for piling and tunneling projects
✔ Standard Ø30mm holder compatibility
✔ Longer service life and reduced maintenance costs