




Electroplated Diamond Core Drill Bit
Kích thước: 75–245 mm
Ứng dụng: Geological Exploration / Rock Sampling / Water Well Drilling
Cấu trúc: Medium-Hard & Relatively Intact Rock
Cutting Material: Electroplated Diamond
Customization: Size / Crown Design / Diamond Grade / Connection
Request a Quote
Enter the quantity you need and add to your quote list for pricing inquiries.
Description
Electroplated Diamond Core Drill Bit for Rock Sampling
Electroplated Diamond Core Drill Bit is designed for geological exploration, rock sampling and water well drilling. The exposed diamond cutting surface provides sharp cutting action, low drilling resistance and efficient penetration in suitable medium-hard formations.
Available from 75 mm to 245 mm, with different diamond grades, crown structures and core barrel sizes for different drilling conditions.
Size 75–245 mm | Cutting Material Electroplated Diamond | Formation Medium-Hard & Relatively Intact Rock |
Application Geological Exploration / Rock Sampling / Water Well Drilling | Customization Size / Crown Design / Diamond Grade / Connection | |
Sharp cutting surface, efficient penetration
Six design advantages behind the Electroplated Diamond Core Drill Bit.
01 / 06 Sharp Diamond Cutting SurfaceExposed industrial diamond particles provide aggressive cutting performance and low initial drilling resistance. | 02 / 06 Fast PenetrationSuitable for applications where efficient drilling speed is required in medium-hard and relatively intact formations. | 03 / 06 Reliable Core RecoveryThe crown structure supports stable core cutting and helps maintain sample integrity during exploration drilling. |
04 / 06 Wide Size RangeAvailable from 75 mm to 245 mm for different borehole and core barrel requirements. | 05 / 06 Multiple Diamond OptionsDifferent diamond grades and crown configurations are available according to formation abrasiveness and drilling conditions. | 06 / 06 Custom ManufacturingBit diameter, crown structure, diamond grade, connection and core barrel matching can be customized. |
Used across exploration, sampling and drilling projects
This electroplated diamond core drill bit is suitable for geological exploration, rock core sampling and water well drilling. Other applications include engineering geological investigation, mineral exploration, hydrological investigation and reinforced concrete coring in suitable configurations.
![]() ![]() | Applications
Suitable Rock FormationsElectroplated diamond core bits are suitable for relatively intact medium-hard formations. Reinforced concrete coring is available with suitable crown and diamond configuration.
⚠️ Note: Actual drilling performance depends on rock abrasiveness, fractures, drilling parameters, diamond grade and operating conditions. | ||||||||||||||||
Diamond grades and crown structures
Different diamond grades and crown profiles can be selected according to formation abrasiveness and drilling requirements.
Standard Grade Standard Diamond GradeSuitable for general geological exploration and routine rock sampling. | Premium Grade Premium Diamond GradeSelected higher-grade diamond particles for improved wear resistance and longer service life. |
Crown Design A Angled Crown DesignHelps improve cutting aggressiveness and debris removal in suitable formations. | Crown Design B Multi-Tooth CrownProvides additional cutting points for larger diameters or higher drilling loads. |
Standard sizes and specifications
Available from 75 mm to 245 mm. Diamond grade, crown design, connection and core barrel matching can be customized.
| Bit Size | Core Barrel | Approx. Teeth | Approx. Weight |
|---|---|---|---|
| 75 mm | 73 mm | 8 | 0.9 kg |
| 91 mm | 89 mm | 10 | 1.3 kg |
| 113 mm | 108 mm | 12 | 1.6 kg |
| 133 mm | 127 mm | 14 | 2.2 kg |
| 153 mm | 146 mm | 16 | 2.4 kg |
| 171 mm | 168 mm | 18 | 3.8 kg |
| 200 mm | 197 mm | 20 | 4.4 kg |
| 220 mm | 219 mm | 24 | 6.4 kg |
| 245 mm | 245 mm | Customized | Customized |
Which diamond core bit should you choose?
Electroplated and hot-pressed diamond core bits are designed for different drilling conditions. Bit selection should be based on rock hardness, abrasiveness, fracture condition, drilling depth and required core recovery.
Electroplated Electroplated Diamond Core BitBest suited for:
| Hot-Pressed Hot-Pressed Diamond Core BitBetter suited for:
|
How to select the right electroplated diamond core bit
To recommend a suitable configuration, please provide the following information. Our engineers will respond with a factory quotation within 24 hours.
01 Required Diameter 75 / 91 / 113 / 133 / 153 / 171 / 200 / 220 / 245 mm | 02 Rock Formation For example: limestone, dolomite, shale, marble or schist. | 03 Drilling Application Geological exploration / rock sampling / water well / concrete coring |
04 Core Barrel Size Core barrel size matching the required bit diameter. | 05 Required Connection Thread connection specification or a photo of the existing tool. | 06 Drilling Depth Planned drilling depth and drilling depth range. |
OEM & ODM customization for specific drilling projects
Every drilling project is different. Chenghui Drilling customizes each bit based on your project data — from diamond grade to crown design.
Rock formation, drilling rig, core barrel and drilling parameters all affect drill bit performance. Our engineering team works with your technical data to recommend the most suitable diamond grade and crown design.
| ![]()
|
Professional drilling tools manufacturer in China
Chenghui Drilling Co., Ltd. specializes in the design, production and supply of PDC drill bits, tricone drill bits, DTH drilling tools and related drilling equipment for customers worldwide. Every drill bit is manufactured and inspected in our own factory, ensuring stable quality, competitive pricing and reliable delivery for international drilling contractors and distributors.
| ![]()
|
Need a customized Electroplated Diamond Core Drill Bit?
Share your drilling requirements with our engineers. We will recommend a suitable diamond grade and crown design, and provide a factory quotation within 24 hours.
| 1. Required Diameter | 2. Rock Formation |
| 3. Drilling Application | 4. Core Barrel / Connection |














