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Premium Impregnated Diamond Core Bits for Mineral Exploration

Engineered for durability, precision, and unmatched performance in hard, consolidated formations. Trusted by drilling professionals worldwide since 2018.

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About DiamondCoreBitMfg

Changsha Drilling Machinery Co., Ltd., operating as DiamondCoreBitMfg.com, specializes in the manufacturing of high-performance impregnated diamond core bits, reaming shells, and casing shoes for mineral exploration and geological drilling.

Our impregnated diamond core bits are designed for maximum efficiency in hard, non-abrasive formations. With a multi-layered diamond matrix, our bits offer extended life, reduced downtime, and consistent core recovery.

  • Global B2B Supplier Since 2018
  • ISO-Compliant Manufacturing
  • 24-Hour Email Response
  • Custom Matrix Hardness Options
Factory License

Our Products

Impregnated Diamond Core Bit DCDMA

Impregnated Core Bit - DCDMA Series

Ideal for hard, consolidated formations. Multi-layered diamond matrix ensures long life and consistent performance.

  • • Matrix Hardness: 45-55 HRA
  • • Sizes: 44mm to 130mm
  • • Application: Mineral Exploration
Matrix Hardness Chart

Matrix Hardness Selection Guide

Customize your bit with optimal matrix hardness based on formation type and drilling conditions.

  • • Range: 35–65 HRA
  • • Compatible with DCDMA, DCDMB
  • • Based on Mohs’ Scale
Reaming Shell

Reaming Shell - RS Series

Precision-engineered reaming shells for consistent hole diameter and smooth core extraction.

  • • Material: High-strength alloy steel
  • • Sizes: Match core bit ranges
  • • Thread: Standard or custom
Fordia Compatibility

Fordia-Compatible Core Bits

Designed to fit Fordia drilling rigs with precision threading and optimal flushing channels.

  • • Direct replacement
  • • Enhanced waterway design
  • • High diamond concentration
Export License

Export-Compliant Products

All products meet international export standards with full customs documentation and certifications.

  • • B2B Export Ready
  • • Certificate of Origin
  • • Customs Clearance Support
DCDMB Series

Impregnated Core Bit - DCDMB Series

Advanced matrix formulation for medium-hard to hard rock formations with high thermal stability.

  • • Matrix Hardness: 50-60 HRA
  • • Optimized for deep drilling
  • • High diamond retention
Wear Profile Analysis

Matrix Wear Profile Analysis

Scientific analysis of used bits to optimize future performance and matrix selection.

  • • Free service with bulk orders
  • • Detailed report provided
  • • Improves drilling efficiency
Casing Shoes

Casing Shoes - CS Series

Protective casing shoes for smooth insertion and reduced wear during drilling operations.

  • • Material: Wear-resistant steel
  • • Sizes: 50mm to 150mm
  • • Thread: N, H, P, or custom

Why Choose DiamondCoreBitMfg?

Wide Application Range

Suitable for diverse geological formations, especially hard and non-abrasive rock types.

Simple Crown Geometry

Reduced risk of in-hole damage and greater tolerance to banded geological layers.

Extended Bit Life

Multi-layered diamond arrangement ensures longer service life compared to conventional bits.

Quality Guaranteed

Rigorous testing and quality control ensure every bit meets international standards.

1000+
Bits Shipped Annually
45+
Countries Served
6
Product Lines
24h
Avg. Response Time

Frequently Asked Questions

What are impregnated diamond core bits used for?

They are primarily used in mineral exploration drilling to extract core samples from hard, consolidated rock formations.

How do I select the right matrix hardness?

Matrix hardness should match the formation hardness. Softer matrices for harder rocks, harder matrices for softer, abrasive formations. We provide selection guides and analysis support.

Do you offer custom sizes or threading?

Yes, we support custom core bit diameters, lengths, and thread types (N, H, P, etc.) for OEM and B2B clients.

What is your lead time for orders?

Standard orders ship within 7–10 business days. Custom orders may take 2–3 weeks depending on complexity.

Do you provide certificates for export?

Yes, we provide Certificate of Origin, Commercial Invoice, Packing List, and other customs documentation upon request.

Get in Touch

Have questions about our products or need a quote? We respond to all inquiries within 24 hours.

Operating Hours: 9:00 – 17:00, Monday to Friday (China Time)

Email: [email protected]

Phone/WhatsApp/WeChat: +86 13808464920

Tel: +86-731-84077805

Fax: +86-731-84072772

Address: 159# Li Xiang East Road, Changsha, Hunan, China. Post Code 410100

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