CGE Long Life Sintered Matrix Impregnated Diamond Core Bit with Optimized ROP for Abrasive Formation Drilling Tools

Product Description

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Product Features
  • Impregnated diamond core bits are the largest conventional size in the large-diameter standard Q series (BQ/NQ/HQ/PQ) for geological drilling, featuring a large borehole diameter and thick core.
  • The bit has an optimized waterway design for smooth cuttings discharge and effective cooling, preventing overheating and burning. Its regular inner diameter ensures stable core clamping.
  • It provides intact core and high core recovery, meeting the requirements of property exploration, geomechanical testing and high-standard engineering investigation.
  • With wear-resistant and impact-resistant diamond matrix, it is suitable for long-time drilling in medium-hard to hard formations, solving low penetration rate problems.
  • It can be used with wireline coring tools, reducing drill rod handling time, borehole collapse risk, and labor cost.
  • The manufacturing facility is ISO certified, and products carry RoHS and MSDS certificates. Custom orders are accepted based on provided drawings.
Technical Specifications
Size Bit O.D. Hole Diameter (mm) Bit I.D. Core Diameter (mm) Reaming Shell O.D. (mm)
PQ12285122.65
PQ312283122.65
BQ58.936.459.95
BQ358.933.5359.95
NQ75.347.675.7
NQ3/NQTT75.345.175.7
HQ95.663.596.09
HQ3/HQTT95.661.196.09
Drill Bit Profiles
W Profile
W Profile
1. Small contact area and high pressure, suitable for hard and compact formations.
2. Staggered sharp teeth ensure good positioning and low deviation rate.
3. Deep grooves facilitate cuttings discharge and sufficient cooling.
Step Profile
Single / Multi-Step Profile
1. Suitable for medium-hard, broken, and interbedded formations.
2. Multi-stage cutting improves efficiency by 20–40%.
3. Step grooves provide excellent cuttings removal and reduce bit balling.
Gear Profile
Gear Profile
1. Spiral/helical teeth absorb impact in hard formations.
2. Enlarged space for cuttings and high water discharge speed.
3. Stable drilling rate in complex geological conditions.
Options

Drill Bit Height Options: H9, H11, H13, H15

Drill Bit Hardness Selection: Y11, Y9, Y7, Y5, Y3, Y1

Packaging & Manufacturing
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Packaging
Factory & Testing

Since 1958, the facility has specialized in the R&D, manufacturing and service of geological drilling tools. As a high-tech enterprise, it holds 81 patents and participates in formulating national standards.

Factory
Testing 1
Testing 2
Frequently Asked Questions
1. Are you a manufacturer or trading company?
We are an established factory specializing in drilling tools with over 60 years of production experience.
2. What is your minimum order quantity (MOQ)?
Our MOQ is 1 piece, allowing for flexible ordering based on your project needs.
3. Can you provide customized products?
Yes, we can manufacture customized products based on your specific drawings or samples.
4. Do you offer private label services?
Yes, we can apply your private label or logo to the products upon request.
5. How do you handle quality guarantees?
We provide free replacements for any product issues caused by manufacturing defects. For other issues, we offer support and repair services.
6. Can I get samples before placing a bulk order?
We are happy to provide small value samples for testing, with delivery costs covered by the customer.

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