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Quick Details

  • Place of Origin: Fujian, China (Mainland)
  • Brand Name: BESTLINK
  • Model Number: HSOD
  • Type: Drill Bit
  • Machine Type: Drilling Equipment
  • Certification: API
  • Material: Carbon Steel
  • Processing Type: Forging
  • Use: Well Drilling
  • casing diameter: 114.3-609.6mm
  • certification: API,ISO9001:2008,CE

Packaging & Delivery

Packaging Details Packing details:
Bits: Single carton inside with bubble or covering layer, again with wooden case outside, or as per your request
Hammers: Single wooden case outside but with bubble covering layer inside.
Product Description

Symmetric drill tools with casing tube 

Application Range 

This product is made of alloy of high quality and apply for advanced high-frequency welding technology and maturity of heat treatment process, greatly improving the intensity, wear resistance and impact toughness of cutter head, increasingly prolonging the working life, enhancing the drilling efficiency.

It is recommended to drill in rock formation where contains some ovals and fractures.


Design Principles

 Make the casing follow easy and the equipment and operation simple 

Outstanding Advantages

The stable and reliable working performance and the less vibration of drill rig and flexible to open and close.

Order Guide:  product type.

Specifications                                                                                             unit:mm

Product typeCasing ODCasing wall max.Ring bit IDRing bit ODPilot bit ODHammer



Factory and workshop



Production process 

01.Raw materials cutting 


03.Numerical control operation 

04.Through rough finish 

   Turning/spines mining 

05.Heat treatment (8hours) 

06.Button bits fitting 

07.Fine finishing 

08.Quality test; 

09.Finished products 

10.Packing and transportation

Inquiry note

To provide you with efficient service, the inquiry note can be help. more details can be negotiated, welcome. 

In order to quote you the best price, please tell us the details as following:

01.Grade and specification or drawings;

02.Quantity and quality level;

03.Operation environment;

04.Other special requirement. 


Packaging & Shipping

Packing & shipping payment

Packing details can be customized as per your requirement

Timely shipment can be made upon our negotiation

The information you may like to know before order: 

1. Methods of Payment:

  T/T (Telegraphic Transfer) or Western Union or L/C at sight,onetouch.cn,Escrow,Paypal 

2. Handling time for an order

  Based on order quantity, normally it takes 25 days for production.

  Only 2 or 3 days if we have stock on your request size.

3. Shipping way

  Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air

  Bulk order: we suggest by air or by sea.

4. Quality Control

  We have our own experienced QC.

  There will be strict inspection and testing for every order before shipping out.

5. After Services:

  1. Our sales team will response for your question within 24 hours (Holidays Excluded)

  2. Technical Support will be available in any time

  3. Free replacement will provide once the failure confirmed caused by our product quality 


Company Information

  Company Information 

 About Us:

1. Our factory has been specialized in manufacturing drilling tools and spare parts since 1980.

2. We have advanced technology and equipment.

3. Our technician has more than 36 year’s professional working experience.

4. Rock drilling tools are exported throughout the world. Main market: Brazil,Chile, Colombia, Uruguay, Australia,Ukraine,Russia, ,Norway, Turkey, USA,Canada, Iran, Malaysia, Thailand, India, etc.


Contact (Name Card)

 Inquiry note

To provide you with efficient service, the inquiry note can be help. more details can be negotiated.  



Transaction History of the Supplier

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Transaction Overview


Transaction Details

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China (Mainland)
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Supplier Assessments:
18 Transactions 410,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $500,000
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