108mm Concrete Concrete PDC Core Drill Bits 8 Blades Diamond Tip

Place of Origin China
Brand Name Hainaisen
Certification ISO 9001
Model Number 108QA28
Minimum Order Quantity 10 pieces
Price To be negotiable
Packaging Details customized
Delivery Time 7 business days
Payment Terms L/C, T/T
Supply Ability 300pcs per day

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Product Details
Use Coal Mining Condition New
Market Global Video Outgoing-Inspection Provided
Showroom Location Xi'an, China Material Diamond And Tungsten Carbide
Machinery Test Report Provided Customized Yes
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8 Blades pdc core drill bits


108mm pdc core drill bits


108mm PDC core bit

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Product Description

Core Drill Bits Diamond Tip Core Drill Bit For Hammer Drilling
1. The structure of the core drill bit is simple, and the cutting track is single.It is easy to be saltatory during the drilling. The high impact-resistance cutters (model: 1308) are used to 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.


Size4- 1/4 inch (Φ108mm)
Model number108QA28
Body typeHigh Manganese Steel
Number of blade8
Primary PDC cutter size1308
Gauge length25.1mm
API connectionconnect 108mm core barrel
Suitable formationF≤12
QualityHigh Level
PackageCorrugated carton
MOQ10 Pieces
CertificateISO 9001
Customized SizeYes

108mm Concrete Concrete PDC Core Drill Bits 8 Blades Diamond Tip 0


Our drill bits will be shipped out within xx days after the 50%/full payment is confirmed.

We ship the bits by sea, by air. Or if you have any other demands, please feel free to let us know.

108mm Concrete Concrete PDC Core Drill Bits 8 Blades Diamond Tip 1


Our Principle

We are insisting in the principle of high quality, superior service and the courage to innovate. We are also adhering to providing the efficient products and excellent services. If you are interested in our drill bits, please feel free to contact us. We are looking forward to cooperating with you!



1. Are you a trading company or manufacturer?
We have been a professional manufacturer of PDC bits since 2013.
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?
The lead time depends on the quantity of the order. Usually, it will take 3-5 days to ship to Tianjin Port or XI'AN Airport, China. For the small order or urgent order, we can send you by air once the order is confirmed.
4. Is it produced according to the standard? And can I expect a quality product?
Yes, all our activities are accredited to ISO9001: 2015, both in products and services. At the same time, mature production technology will ensure the quality to satisfy the international request. We have strictly inspection in the production. Our bits are exported to the Middle East, Europe, North America, South America, Australia, and other countries and regions.
5. How do you guarantee your quality?
We select the advanced production technology and equipment, strictly control the whole production process, and inspect the finished drill bits. We can also make several design changes according to the customer's feedback, and finally ensure the customer's excellent drilling effect.
6. What is your payment terms?
Our payment terms: T/T (normally 30% deposit ,balance 70% before shippment )
or LC at sight.


If you have any questions, please feel free to contact us. No matter how far away we are, communication is no boundaries.