PDC Spiral Core Drill Bit for Geological Exploration
Size: 75–153 mm
Core Barrel: 73–146 mm
Cutter: PDC 1005 / 1305
Application: Geological Exploration / Rock Sampling / Water Well
Formation: Medium-hard Rock
Customization: Cutter Grade / Thread / Diameter
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Description
PDC Spiral Core Drill Bit for Geological Exploration
PDC Spiral Core Drill Bit is designed for geological exploration, rock sampling and water well drilling. The spiral body design helps improve fluid circulation and supports stable drilling performance, while high-quality PDC cutters provide good wear resistance in suitable medium-hard formations.
Available in 75–153 mm sizes with different PDC cutter grades and customized connections according to drilling conditions.
Size 75–153 mm | Core Barrel 73–146 mm | Cutter PDC 1005 / 1305 |
Application Geological Exploration / Rock Sampling / Water Well | Formation Medium-hard Rock | Customization Cutter Grade / Thread / Diameter |
Engineered for stable cutting and reliable core recovery
Five design advantages behind the PDC Spiral Core Drill Bit.
01 / 05 Spiral Body DesignThe spiral body helps improve drilling fluid circulation and cuttings removal during operation. | 02 / 05 Multiple Cutter GradesDifferent PDC cutter grades can be selected according to formation hardness and drilling conditions. | 03 / 05 Stable Core RecoveryOptimized cutting structure supports stable drilling and reliable core recovery. |
04 / 05 Reinforced OptionsHeavy-duty reinforced models are available for more demanding medium-hard formations. | 05 / 05 Customized ManufacturingDiameter, cutter grade, cutter quantity and thread connection can be customized. |
Used across exploration, sampling and drilling projects
This PDC spiral core drill bit is suitable for geological exploration, rock core sampling and water well drilling. Other applications include mineral exploration and engineering investigation.
![]() ![]() | Applications
Suitable Rock FormationsSuitable for medium-hard formations. For more abrasive or structurally complex formations, reinforced PDC cutter configurations can be selected according to project conditions.
⚠️ Note: Actual drilling performance depends on rock abrasiveness, fractures, drilling parameters, cutter selection and operating conditions. | ||||||||||||||||
Cutter profiles matched to your formation
Different PDC cutter profiles can be selected according to rock formation and drilling requirements.
Option A Beveled CutterHelps improve impact resistance and wear resistance in formations with higher drilling load. | Option B Gear-Type CutterThe toothed profile improves rock-breaking efficiency and cutting aggressiveness. | Option C Triangular / Reinforced CutterSuitable for formations requiring stronger cutting action and enhanced penetration performance. |
Standard sizes and cutter configurations
Available from 75 mm to 153 mm. Cutter grade, cutter quantity and thread connection can be customized for specific drilling conditions.
| Product Type | Bit Size | Core Barrel | PDC Cutter | Approx. Weight |
|---|---|---|---|---|
| Spiral PDC Core Bit | 75 mm | 73 mm | 6 PCS / 1005 | 1.0 kg |
| Spiral PDC Core Bit | 91 mm | 89 mm | 8 PCS / 1005 | 1.3 kg |
| Spiral PDC Core Bit | 113 mm | 108 mm | 10 PCS / 1005 | 1.5 kg |
| Reinforced Spiral PDC Core Bit | 113 mm | 108 mm | 8 PCS / 1305 | 2.7 kg |
| Reinforced Spiral PDC Core Bit | 133 mm | 127 mm | 10 PCS / 1305 | 3.2 kg |
| Reinforced Spiral PDC Core Bit | 153 mm | 146 mm | 12 PCS / 1305 | 3.7 kg |
How to select the right PDC spiral core drill bit
To recommend a suitable configuration, please provide the following information. Our engineers will respond with a factory quotation within 24 hours.
01 Required Bit Diameter For example: 75 mm, 91 mm, 113 mm or 133 mm. | 02 Rock Formation For example: limestone, dolomite, shale, marble or gneiss. | 03 Drilling Application Geological exploration, rock sampling or water well drilling. | 04 Connection / Core Barrel Size Please provide the connection specification or a photo of your existing drilling tool. |
OEM & ODM customization for specific drilling projects
Every drilling project is different. Chenghui Drilling customizes each bit based on your project data — from cutter grade to thread connection.
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 PDC cutter grade and spiral body configuration.
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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.
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Need a customized PDC Spiral Core Drill Bit?
Share your drilling requirements with our engineers. We will recommend a suitable PDC cutter grade and spiral body configuration, and provide a factory quotation within 24 hours.
| 1. Required Diameter | 2. Rock Formation |
| 3. Drilling Application | 4. Connection / Core Barrel Size |
FAQ
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What is a PDC Double Cutter Core Drill Bit?
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What formations can PDC core bits drill?
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What sizes of PDC core bits can you manufacture?
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Can you customize the cutter design?
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How can I choose the correct PDC core bit?
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Downloads
| File | Download |
|---|---|
| CNC-Machining-Center.pdf | Download |














