4.5 Inch PDC Core Drill Bit 8 Blades Exploitiation Bit For Mining

Place of Origin China
Brand Name Hainaisen
Certification API & ISO 9001
Model Number 8 Blades
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 PDC Mining Core Bit Usage Exploitiation
Advantage Best Service Application Rock Drilling
Size Required Market Global
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4.5 Inch PDC Core Drill Bit


8 blades PDC Core Drill Bit


8 Blades Exploitiation Bit

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Product Description

4 1/2inch PDC Core Drill Bit 8 Blades Exploitation Bit For Mining



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. We adopt five-axis high-precision process technology to design the noumenon of the core drill bit, so the tooth hole of the bit is in a high precision, and the bit is more stable during the drilling.

3. We use gauge strip to strenghthen the integral structure of the bit, and we also increase the impact resistance of the bit. So the cutters have good fluctuation stability with high rock-breaking efficiency during the rock breaking.


Size 4- 1/2 inch (Φ113mm)
Model number 113QA28
Body type High Manganese Steel
Number of blade 8
Primary PDC cutter size 1308
Gauge length 25.1 mm
API connection connect 108mm 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


4.5 Inch PDC Core Drill Bit 8 Blades Exploitiation Bit For Mining 0

4.5 Inch PDC Core Drill Bit 8 Blades Exploitiation Bit For Mining 1



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!

4.5 Inch PDC Core Drill Bit 8 Blades Exploitiation Bit For Mining 2


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!



Q1: Is your company a distributor or a manufacturer?
A: We are a professional Rock Bits manufacturer in China.

Q2: How about your products?
A: All our activities are accredited to ISO9001: 2008, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.We have many high quality prducts (the more information).

Q3: What is the Packaging & Delivery?
A: We used high quality export carton or standard export woodern case


Q4: what is the time about the delivery?
A: The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement. According the distance from China to your port, usually from China to European about 25 days. To West of American 20 days.


Q5: How to order the products?
A: Send the inquiry with detail item description or with Model number. If there is no packing demand we take it as sea-way packing. If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.