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🔧 Products We Offer:

1. Surface Set Diamond Core Bits

• Ideal for: Soft to medium-hard formations

• Features:

  • Single-layer industrial diamonds hand-set on the crown.

  • High drilling speed with minimal torque.

  • Especially effective in formations with little abrasiveness.

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2. Impregnated Diamond Core Bits

• Ideal for: Medium to very hard and abrasive formations

• Features:

  • Multiple layers of synthetic diamonds evenly distributed in a metal matrix.

  • Self-sharpening as the matrix wears.

  • Suitable for drilling in varied and unpredictable geology.

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3. Diamond Reaming Shells

• Purpose: Maintains borehole size, reduces vibration, stabilizes bit

• Features:

  • Natural or synthetic diamonds bonded to a steel body.

  • Designed to match the bit diameter exactly.

  • Extends bit life and improves hole straightness.

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⚙️ Manufacturing Process of Core Drilling Bits

Our in-house manufacturing follows strict quality protocols to deliver consistent results:

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🔍 1. Geology-Based Design Consultation

• Work with clients to determine ground conditions (abrasiveness, hardness, structure).

• Recommend optimal bit crown profile, matrix grade, and waterway style.

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✍️ 2. CAD Modeling & Toolpath Simulation

• Engineers develop detailed 3D CAD models for each bit.

• Simulate cutting paths, fluid flow, and bit wear digitally before physical production.

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⚖️ 3. Raw Material Selection

• Source high-grade synthetic diamonds and powdered metal alloys.

• Materials are graded by mesh size and hardness for consistency.

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🌀 4. Powder Blending & Diamond Mixing

• Precisely measured metal powder blends are mixed with diamond grit.

• Mixing is performed in vacuum-sealed or inert gas environments to prevent contamination.

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🔥 5. Cold Compaction (Preforming)

• Powder-diamond mixture is pressed into a steel mold to form a pre-bit shape (preform).

• Ensures even density and diamond dispersion.

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♨️ 6. Hot Pressing / Sintering

• Preforms are heated under high temperature (750–1,000°C) and pressure in a sintering press.

• This bonds the matrix and diamonds into a single high-strength bit crown.

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🧊 7. Controlled Cooling & Stress Relief

• The bit crown is cooled slowly in a nitrogen atmosphere or inert chamber to prevent cracks.

• Post-press heat treatments improve hardness and durability.

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🛠️ 8. Surface Set Bit Diamond Embedding (Manual or Robotic)

• For surface set bits, diamonds are manually positioned in patterns.

• A high-silver content solder or brazing material is used to fix them in place.

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🔩 9. Thread Machining & Body Fabrication

• Bit bodies are CNC-machined to precise thread dimensions (BQ/NQ/HQ/PQ).

• Runout and concentricity checks ensure perfect alignment with drill strings.

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🔍 10. Precision Grinding & Waterway Finishing

• Bit crown is ground to final shape and size.

• Waterways are milled or EDM-cut for optimal flushing efficiency.

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🧪 11. Rigorous Quality Control

• Each bit undergoes:

  • Hardness testing (Rockwell)

  • Dimensional verification

  • Diamond exposure and distribution analysis

  • Balancing tests

  • Thread gauge inspections (GO/NO-GO standards)

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🖌️ 12. Anti-Corrosion Coating & Final Packaging

• Final bit is coated with protective anti-rust layers.

• Laser engraved with size, matrix code, production batch, and part number.

• Carefully packed for field-ready use.

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🌍 Industries & Applications:

• Mineral Exploration & Core Drilling

• Geotechnical & Environmental Sampling

• Mining Feasibility Studies

• Infrastructure & Tunnel Boring Projects

• Water Well and Hydrogeology Surveys

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🔧 We Also Offer:

• Custom bit development for challenging formations

• Reaming shell refurbishing & re-tipping

• Bit re-sharpening and matrix reconditioning

• Thread repair and retooling