Petroleum 4 Blade Borehole Drill Bit Carbon Steel Diamond PDC

Place of Origin China
Brand Name Hainaisen
Certification ISO 9001
Model Number 8-1/2 HS6433TB
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

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571


If you have any concern, we provide 24-hour online help.

Product Details
Diameter 8 1/2inch (215.9mm) Blades 4 Blades, Customized
Use Coal Mining,oil And So On Material Carbide,Carbon Steel
Application Rock Drilling Usage Water Well Drilling,Power Tool Accessories,Coal Mine Drilling
High Light

petroleum borehole drill bit


4 blade borehole drill bit


carbon steel diamond PDC

Leave a Message
Product Description

8-1/2inch 4 Blades Oil Water Pdc Bits Oil Well Drill Bit Petroleum Industry


Diamond bits have a wide working range and can penetrate quickly even in softer rock with a 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. The technology differs from traditional duplex bits in that it requires higher weight to drill even in soft rock and is generally durable even in harder rock, but is slower. 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 HS6433TB
Body type steel body
Number of blade 4
Primary PDC cutter size 1613
Number of nozzle 6
Gauge length 50.8mm
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


Petroleum 4 Blade Borehole Drill Bit Carbon Steel Diamond PDC 0

Petroleum 4 Blade Borehole Drill Bit Carbon Steel Diamond PDC 1


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


Petroleum 4 Blade Borehole Drill Bit Carbon Steel Diamond PDC 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. Is your company a distributor or a manufacturer?
A: We are a a professional factory of rock drilling bits in China.


2. 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 bits.

3. What is the Packaging&Delivery?
A: We use high quality export carton or standard export woodern case.


4. What is the time about the delivery?
A: Ready to deliver within 1 week, if in stock.
Depends on order quantity, when out of stock, 7-30 days
Transportation: sea or air


5. 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 so that we can get a better understanding.


Communication knows no boundaries, no matter where you are.

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