3 Inch PDC Drag Bit 75mm Coal Polycrystalline Diamond Compact Bits

Place of Origin China
Brand Name Hainaisen
Certification API & ISO 9001
Model Number 75QA28
Minimum Order Quantity 10 pieces
Price To be negotiable
Packaging Details customized
Delivery Time 5-7 business days
Payment Terms T/T, L/C
Supply Ability 300pcs per day

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Product Details
Product Name Rock PDC Core Drill Bit Usage Mining & Coal & Well
Machine Type Drilling Equipment Advantage Factory Manufactures
Blades 3 - 9 Blades Market All Over The Word
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Hainaisen 3 Inch PDC Drag Bit


75mm PDC drag bit


Hainaisen coal polycrystalline diamond compact bits

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Product Description

3 Inch PDC Core Drill Bit Rock Drill Bit PDC Drag Bit Well Drill Bit



1.The structure of the core drill bit is simple, and the cutting track is single in the underground.It is easy to be saltatory during the drilling. The high impact-resistance cutters (model 1308) are making sure stablize the bit.
2, the body of the PDC core bit adopts five-axis high-precision processing, the precision of the drill hole is higher, the effect of tooth distribution is good, and the stability of the drill bit is better.
3. The diameter retaining bar is used to strengthen the overall structure of the drill bit, and the impact resistance of the coring bit is strengthened. The fluctuation stability of the cutting force in the process of rock breaking is good, and the rock breaking efficiency is high.


Size 75mm
Model number 75QA28
Body type High Manganese Steel
Primary PDC cutter size 1308
API connection connect 73mm core barrel
Suitable formation F≤12
Application Mining&Coal&Well
Quality High Level
Package Corrugated carton
MOQ 10 Pieces
Certificate ISO 9001
Customized Size Yes



3 Inch PDC Drag Bit 75mm Coal Polycrystalline Diamond Compact Bits 0


Our drills will ship within 5 days after 50% full payment is confirmed. The drill bits will be shipped by sea or air as your request. And if you have any other questions, please contact us freely. Thanks!

3 Inch PDC Drag Bit 75mm Coal Polycrystalline Diamond Compact Bits 1


Our Principle

We adhere to the principles of high quality, high quality service, and innovation. We also insist on providing efficient products and quality services. If you are interested in our drills, please feel free to contact us. We are looking forward to cooperating with you!



1. Are you a trading company or manufacturer?

We are a professional manufacturer of PDC bits.


2. Whether accept customized according to clients' requirements?

Yes, We accept customized products, no matter what size and what type. Please feel free to contact us.


3. About lead time and shipping time?

Delivery time depends on the quantity of the order. Usually, it takes 3-5 days to ship to Tianjin Port or Xi'an Airport in China. For small orders or urgent orders, we can ship to you by air after the order is confirmed.


4. Is it produced according to the standard? And can I expect a quality product?

Yes, all our activities are ISO9001:2015 certified, including products and services. At the same time, mature production technology will ensure that the quality meets international requirements. We have carried out strict inspection in production. Our drill bits are exported to the Middle East, Europe, North America, South America, Australia and other countries and regions.