5 Blades Oil Well Drill Head

Place of Origin China
Brand Name Hainaisen
Certification ISO 9001
Model Number 8-1/2HS6533DA
Minimum Order Quantity 5 pieces
Price To be negotiable
Packaging Details iron case
Delivery Time 5-7 business days
Payment Terms T/T, L/C
Supply Ability 20pcs per day

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Product Details
Size 215.9mm Application Coal Mining
Type Diamond PDC Bit Blades 5 Blades
Market Global Video Outgoing-Inspection Provided
Showroom Location Xi'an, China Machinery Test Report Provided
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5 Blades Oil Well Drill Head


215.9mm Oil Well Drill Head


Manganese well drill head

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Product Description

8-1/2 Inch 5 Blades Steel Body PDC Drilling Bit Oil Well Rock Bit



1. The drill crown has a medium cast surface for hard and abrasive formations.
2. The taper surface is shallow, the drill bit has good orientation, good cleaning effect and strong erosiveness.
3. The angle of the PDC tool is 18-25°, which makes the drill bit have higher cutting performance.
4. Double-row PDC cutters are welded on the shoulder of the drill bit, which can work at the same time to protect the front teeth. At the same time, they can also complement each other. This design can increase drilling speed and enhance the wear resistance of the drill bit.

5. The water jet angle is optimized to improve the cleaning ability of the drill bit. Also, it reduces the number of repeated cuts.
6. The long gauge surface is welded with double rows of PDC cutter gauge teeth, which enhances wear resistance and provides better gauge protection. At the same time, the design can increase the stability of the drill bit and prolong the service life of the drill bit.


Size 8-1/2 inch (Φ215.9mm)
Model number 8-1/2HS6533DA
Body type High Manganese Steel
Number of blade 5
Primary PDC cutter size 1613
Number of nozzle 7
Diameter of nozzle 20 mm
Gauge length 72 mm
API connection API 4-1/2 REG
Make-Up Torque(KN.m) 16.3~21.7(4.79)KN·m(Mpa)
Suitable formation Hard and Abrasive formation
Weight On Bit(WOB) 4-16 T
Rotary Speed(RPM) 60-240r/min
Application Oil & Nature Gas
Quality High Level
Package Iron Case
MOQ 5 Pieces
Certificate ISO 9001
Customized Size Yes

5 Blades Oil Well Drill Head 0

5 Blades Oil Well Drill Head 1




Our drill bits will be shipped out within 7 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.


5 Blades Oil Well Drill Head 2


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. 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.


4. 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.


5. 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.