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Two Wing PDC Anchor Drill Bit for Hard Rock | Super Strength Mining Roof Bolt Bit

Standard Sizes & Threads

  • Bit Diameters: 25mm, 27mm, 28mm, 29mm, 30mm, 32mm, 36mm, 42mm
  • Common Connection Threads: M14×1.5, M16×2, M14×2, M12×2
  • Customization: Non-standard sizes and threads available upon request.

Core Advantages

  • ✔ High strength and wear resistance for extended service life
  • ✔ Excellent impact resistance reduces chipping risk
  • ✔ Stable drilling performance and high hole quality
  • ✔ Suitable for fractured and interlayered complex formations
  • ✔ Customizable specifications and structures

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Super Strong Hard Rock PDC Anchor Drill Bit

For 8<F<12 Ultra-Hard Complex Formations · High Impact Resistance · Stable & Wear-Resistant · Efficient Small-Diameter Drilling
8<F<12 Ultra-Hard High Impact Resistance Spherical PDC Cutters Small Diameter 25-42mm

Product Overview

The Super Strong Hard Rock PDC Anchor Drill Bit features a two-wing full-face design, specifically developed for high-hardness, fractured, and complex rock formations. It is ideal for small-diameter rock drilling applications such as coal mine support and tunnel engineering.

Designed for formations with Protodyakonov coefficient 8<F<12, this bit utilizes premium spherical polycrystalline diamond compact (PDC) cutters to enhance impact resistance and wear resistance, ensuring stable drilling performance under complex working conditions.

Note: F is the Protodyakonov coefficient, a key indicator of rock hardness in the mining industry.

Technical Specifications

1️⃣ Product Type

Structure: Two-wing full-face Grade: Super Strong Cutter Type: Spherical PDC cutters

2️⃣ Applicable Rock Formations

Grade Adapted Formation
Super Strong 8<F<12 high-hardness fractured rock

3️⃣ Standard Specifications

Bit Diameters: 25mm, 27mm, 28mm, 29mm, 30mm, 32mm, 36mm, 42mm Common Connection Threads: M14×1.5, M16×2, M14×2, M12×2

👉 Non-standard customization available

PDC Cutter Type Comparison

To adapt to different rock structures, two types of diamond composite cutters are available:

🔹 Flat Face (Full-Face)

  • ✓ Fast penetration rate
  • ✓ High cutting efficiency
  • ✓ Suitable for intact uniform formations
  • ✓ Recommended for F≤12 formations

🔹 Spherical Face (Full-Face)

  • ✓ Strong impact resistance
  • ✓ Low risk of chipping
  • ✓ Suitable for fractured & complex formations
  • ✓ Recommended for 8<F<12 formations
👉 For complex rock formations, spherical cutters are the preferred choice.

Product Grade & Application Comparison

Product Name Grade Cutter Type Adapted Rock
PDC 2-Wing Anchor Bit Super Strong Full-face (Spherical) F≤12
PDC 2-Wing Anchor Bit High Strength Full-face (Flat) F≤12
PDC 2-Wing Anchor Bit Reinforced Half-face F≤10
PDC 2-Wing Anchor Bit Standard Half-face F≤8

Core Advantages

✓
High wear resistance, long service life
✓
Superior impact resistance, reduced chipping risk
✓
Stable drilling, high borehole quality
✓
Ideal for fractured and interbedded complex formations
✓
Support for size and structure customization

Applications

Coal Mine Roadway Support Drilling
Engineering Tunnel Construction
Underground Support Anchoring
Small-Diameter Rock Drilling Projects

Customization Available

We offer custom diameters, thread types, and cutter configurations to meet your specific project requirements. Contact us for a tailored solution.

Our Manufacturing Excellence

From precision machining to final assembly — every drill bit is crafted in our ISO 9001 certified facility.

Explore Our Full Range of Drilling Tools

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Custom Drill Bit

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Drilling Rigs and Accessories

Complete drilling systems and support equipment.

Contact us to learn more about any product — we provide fast quotes and technical support.

📬 Let’s talk about your hard rock drilling project

Whether you need a standard super strong hard rock PDC anchor bit or a fully customized solution, our engineering team is ready to support you with fast quotes and technical advice.
  • ⚡ Response within 24h — guaranteed
  • 🔧 OEM / custom diameters, thread types, cutter configurations
  • 📦 Global shipping & export documentation
  • 📄 Free technical datasheet & performance report

Speak directly with chenghui

Senior Sales Engineer — 10+ years in PDC anchor bit solutions
📱
WhatsApp direct: +86 177 2788 7618
📧
Email address: CH@drillmfg.com
🕒
Business hours: Monday–Friday, 8:00–18:00 (GMT+8)
⏱️ Typical response time: 2–12 hours | Urgent projects: mark as “URGENT” in subject

Super Strong Hard Rock PDC Anchor Drill Bit – For 8<F<12 Ultra-Hard Formations

PDC anchor drill bit, hard rock drilling, small diameter anchor bit, coal mine support drilling, tunnel engineering, spherical PDC cutters, high impact resistance, wear-resistant, 25-42mm drill bit, Protodyakonov coefficient F<12, China PDC anchor bit manufacturer, custom rock drilling tools

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