Coal 8.5 Inch Oilfield Drill Bit Forging Percussion Well Drilling

Place of Origin China
Brand Name Hainaisen
Certification ISO 9001
Model Number 8-1/2 HS6533TB
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 8 1/2inch (215.9mm) Material Carbide,Carbon Steel
Use Well Drilling,Coal Mining,well Drill Processing Type Forging,Stell Body,Other
Market Global,Mid East,European Blade Number 6
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ISO 9001 forging percussion well drilling bits


ISO 9001 forging percussion well drilling bit


forging percussion well drilling bits ISO 9001

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Product Description

8-1/2inch 6 Blades Rock Drilling Bit Coal Mining Bits Matrix Body


The diamond bit has a wide working range and can penetrate quickly even in softer rock where the bit is lighter in weight. When the ground gets tough, this bit adds weight, has a smooth torque response, and maintains higher penetration than the competition. Unlike traditional dual-phase rigs, this technology requires more weight even in soft rock and is generally durable, but is slower, even in harder rock. Conventional multi-position drills also have an unstable torque response when subjected to extra weight.


Size 8 1/2 inch (Φ215.9mm)
Model number 8-1/2 HS6533TB
Body type steel body
Number of blade 5
Primary PDC cutter size 1613
Number of nozzle 5
Gauge length 75.8mm
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

Coal 8.5 Inch Oilfield Drill Bit Forging Percussion Well Drilling 0

Coal 8.5 Inch Oilfield Drill Bit Forging Percussion Well Drilling 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.

Coal 8.5 Inch Oilfield Drill Bit Forging Percussion Well Drilling 2

Our Principle

Our goal is to provide customers with the highest quality products and services. We have a professional R&D team, the most advanced domestic production equipment and precision instruments to reduce costs, speed up drilling, and ensure safety.
Cooperation and win-win is our ultimate pursuit. If you're looking for a drill bit manufacturer, we're definitely what you're looking for :)



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


2. Where is your factory located in?
A: It's 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. 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.


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!