Electroplated Diamond Core Drill Bit - Drilling Bits - Ch...

Electroplated Diamond Core Drill Bit

Name: Electroplated Diamond Core Drill Bit
Brand: Chenghui Drilling Tools

Size: 75–245 mm
Application: Geological Exploration / Rock Sampling / Water Well Drilling
Formation: Medium-Hard & Relatively Intact Rock
Cutting Material: Electroplated Diamond
Customization: Size / Crown Design / Diamond Grade / Connection

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Description

Product Snapshot

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

Key Features

Sharp cutting surface, efficient penetration

Six design advantages behind the Electroplated Diamond Core Drill Bit.

01 / 06

Sharp Diamond Cutting Surface

Exposed industrial diamond particles provide aggressive cutting performance and low initial drilling resistance.

02 / 06

Fast Penetration

Suitable for applications where efficient drilling speed is required in medium-hard and relatively intact formations.

03 / 06

Reliable Core Recovery

The crown structure supports stable core cutting and helps maintain sample integrity during exploration drilling.

04 / 06

Wide Size Range

Available from 75 mm to 245 mm for different borehole and core barrel requirements.

05 / 06

Multiple Diamond Options

Different diamond grades and crown configurations are available according to formation abrasiveness and drilling conditions.

06 / 06

Custom Manufacturing

Bit diameter, crown structure, diamond grade, connection and core barrel matching can be customized.

Applications & Formations

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.

Electroplated diamond core drill bit geological exploration scene

Electroplated diamond core drill bit rock sampling scene

Applications

	Geological Exploration Continuous rock cores for geological surveys and subsurface research.
	Rock Sampling Preserving rock core structure for accurate laboratory analysis.
	Water Well Drilling Stable cutting performance for efficient borehole advance.

Suitable Rock Formations

Electroplated diamond core bits are suitable for relatively intact medium-hard formations. Reinforced concrete coring is available with suitable crown and diamond configuration.

Limestone	Dolomite	Shale	Marble	Schist
Carbonate Rock	Other Medium-hard Compact Formations

⚠️ Note: Actual drilling performance depends on rock abrasiveness, fractures, drilling parameters, diamond grade and operating conditions.

Diamond & Crown Options

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 Grade Suitable for general geological exploration and routine rock sampling.	Premium Grade Premium Diamond Grade Selected higher-grade diamond particles for improved wear resistance and longer service life.
Crown Design A Angled Crown Design Helps improve cutting aggressiveness and debris removal in suitable formations.	Crown Design B Multi-Tooth Crown Provides additional cutting points for larger diameters or higher drilling loads.

Technical Specifications

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

Electroplated vs Hot-Pressed

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 Bit

Best suited for:

—	Fast initial cutting
—	Medium-hard intact formations
—	Lower drilling resistance
—	Efficient short-to-medium drilling intervals

Hot-Pressed

Hot-Pressed Diamond Core Bit

Better suited for:

—	Longer continuous drilling
—	Abrasive formations
—	Deeper drilling applications
—	Different matrix hardness requirements

⚠️ Note: Bit selection should be based on rock hardness, abrasiveness, fracture condition, drilling depth and required core recovery.

How to Select

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.

Factory Customization

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.

— Size / Diameter	— Crown Design
— Diamond Grade	— Thread Connection
— OEM Logo	— Packaging

CNC machining of electroplated diamond core drill bit

Electroplated diamond core drill bit assembly process

About Chenghui Drilling

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.

Supply Mode Factory Direct	Manufacturing In-House
Service OEM / ODM	Market Global Export

Chenghui Drilling Tools production workshop

Get In Touch

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

📩 Request Quote
Contact Engineer

FAQ

1
What is an Electroplated Diamond Core Drill Bit?
+

An electroplated diamond core drill bit uses exposed industrial diamond particles bonded to the cutting crown through an electroplating process. It is designed for geological exploration, rock sampling and other core drilling applications where sharp cutting and efficient penetration are required.

2
What formations are suitable for Electroplated Diamond Core Bits?
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They are mainly suitable for medium-hard and relatively intact formations such as limestone, dolomite, shale, marble, schist and other compact rock formations. The final selection should consider rock hardness, abrasiveness and fracture conditions.

3
What sizes are available?
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Standard diameters include 75 mm, 91 mm, 113 mm, 133 mm, 153 mm, 171 mm, 200 mm, 220 mm and 245 mm. Customized sizes are also available according to core barrel and drilling system requirements.

4
What is the difference between Electroplated and Hot-Pressed Diamond Core Bits?
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Electroplated diamond core bits provide a sharp exposed cutting surface and are suitable for fast penetration in appropriate formations. Hot-pressed diamond core bits use a deeper diamond matrix and are generally better suited for longer continuous drilling and more abrasive conditions.

5
Can you customize Electroplated Diamond Core Drill Bits?
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Yes. We can customize diameter, diamond grade, crown profile, tooth quantity, waterway design, thread connection, core barrel matching, product marking and packaging according to your drilling requirements.