Coal Mining Steel Body PDC Bit 7 Nozzle 215.9mm Drilling Bits For Oil Rigs

Place of Origin China
Brand Name Hainaisen
Certification ISO 9001
Model Number 8-1/2 HS95220B
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
Diameter 8 1/2inch, 215.9mm Blades 4-9 Blades
Use Coal Mining,oil And So On Product Name Cheap Price PDC Concave Center Well Drilling Drill Bit
Type Diamond Pdc Bit Material Carbide,Carbon Steel
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coal mining Steel Body PDC Bit


7 nozzle Steel Body PDC Bit


215.9mm drilling bits for oil rigs

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Product Description

8-1/2inch 5 Blades Concrete Core Drill Bit Oil Well Drill Bit Gauge Length


The diamond bit has a wide working range and can penetrate quickly even in softer rock with low bit weight. When the ground gets harder, the bit can add weight with a smooth torque response and maintain a higher penetration rate than the competition. This technology differs from traditional duplex bits, requiring higher weights to drill holes even in soft rock, and is generally durable, but slower, even in harder rock. Conventional multi-position bits also have an unstable torque response when exposed to extra weight.


Size 8 1/2 inch (Φ215.9mm)
Model number 8-1/2 HS95220B
Body type steel body
Number of blade 5
Primary PDC cutter size 1913
Number of nozzle 7
Gauge length 64mm
API connection 4-1/2 REG
Make-Up Torque(KN.m) 16.3~21.7(4.79) KN·m(Mpa)
Application Oil & Nature Gas
Quality High Level
Package Iron Case
MOQ 5 Pieces
Certificate ISO 9001
Customized Size Yes


Coal Mining Steel Body PDC Bit 7 Nozzle 215.9mm Drilling Bits For Oil Rigs 0

Coal Mining Steel Body PDC Bit 7 Nozzle 215.9mm Drilling Bits For Oil Rigs 1


Our bits will be shipped within 5 days after 40% full payment is received. They will be shipped by sea or air according to your requirements. Please feel free to contact us if you have any other requests.


Coal Mining Steel Body PDC Bit 7 Nozzle 215.9mm Drilling Bits For Oil Rigs 2

Our Principle

Our goal is to provide the best quality products and services to our clients. We have professional R&D team, domestic most advanced production equipment and precision instruments to reduce costs, speed up drilling and ensure safety.
Win-win cooperation is our ultimate pursuit. If you are looking for drill bit manufacturers, we are definitely who you want :)



1. Are you manufacture?
A: Yes, we are pdc bit manufacturer since 2013.


2. Where are you located in?
A: We are located in Xi'an City Shaanxi China.


3. What are your main products?
A: Our mainly products are PDC drill bit, core drill bit, coal mining bits, pdc cutters and other drilling bits.


4. What's your MOQ?
A: Our MOQ is 1 piece, but if you just want sample test quality we can surely supply to you.


5. How many days with your delivery?
A: We can delivery goods with 7 days if we have goods in stock, if need produce with your demand we will negotiation with you.


Communication knows no boundaries, no matter where you are.

If you have any requests, please feel free to contact us at anytime!