Vertical Api Steel Tooth Bit Tricone Drill Bit For Mining Tricone Bit
1~5 piece
Vertical Api Steel Tooth Bit Tricone Drill Bit For Mining Tricone Bit
Features Gallery Product Description Request A Quote
Basic Infomation
Place of Origin: China
Brand Name: ROSCHEN
Certification: ISO,CE
Model Number: 2'~24'
High Light:

API Tricone Drill Bit 8 1/2"


tricone rock bit 8 1/2"


4 1/2" tricone drill bit

Payment & Shipping Terms
Packaging Details: Wooden box
Delivery Time: 5~15days
Supply Ability: 500 pieces
Name: Tricone Drill Bit
Use: Mining Tricone Bit
Material: Api Steel Tooth Bit
Type: One Inch Drill Bit
Origin: China 133mm Double Casing Drilling Bit
Size: 2 Inch Diameter Drill Bit
Supplier: Best Drilling Bits Supplier
Manufacturer: China 8 1/2 Inch Tricone Cutters Bits Manufacturer
Product Description



TCI Tricone Drill Bit 8 1/2 inch IDAC Code 845 G with 4 1/2 regular thread


Well drilling is the process of drilling a hole in the ground for the extraction of a natural resource such as ground water, brine, natural gas, or petroleum, for the injection of a fluid from surface to a subsurface reservoir or for subsurface formations evaluation or monitoring. Drilling for the exploration of the nature of the material underground (for instance in search of metallic ore) is best described as borehole drilling.

2 1/2" to 2 3/4" inclusive A - AW Rod
2 7/8" to 3 3/8" inclusive N4 Rod
3 1/2" to 4 1/2" inclusive 2 3/8" API
4 5/8" to 5" inclusive 2 7/8" API
5 1/8" to 7 3/8" inclusive 3 1/2" API
7 1/2" to 9 3/8" inclusive 4 1/2" API
9 1/2" to 14 3/8" inclusive 6 5/8" API
14 1/2" to 18 1/2" inclusive 6 5/8" API or 7 5/8" API
18 5/8" to 26" inclusive 7 5/8" API or 8 5/8" API
27" and larger 8 5/8" API
*Tricone bits are available with alternative connection sizes on request.



Vertical Drill Bit

The earliest wells were water wells, shallow pits dug by hand in regions where the water table approached the surface, usually with masonry or wooden walls lining the interior to prevent collapse. Modern drilling techniques utilize long drill shafts, producing holes much narrower and deeper than could be produced by digging.

Well drilling can be done either manually or mechanically and the nature of required equipment varies from extremely simple and cheap to very sophisticated.

Managed Pressure Drilling (MPD) is defined by the International Association of Drilling Contractors (IADC) as "an adaptive drilling process used to more precisely control the annular pressure profile throughout the wellbore." The objectives of MPD are "to ascertain the downhole pressure environment limits and to manage the annular hydraulic pressure profile accordingly."



Quality warranty:

Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.


Using ply-wooden cases and pallet for package to protect the products and avoid the damage during transportation. Also we can customize package according to your special requests.

Production time:
Generally need 15-25 days

By air, By Express or By sea according to your requests.

1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight

2. Handling time for an order
Based on order quantity, normally it takes 20 days for production.
in 3 working days after receiving the advance payment

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:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time

6. Quality & Service:
A. There will be strict inspection and testing for every order before shipping out.
B. Our sales team and Technical Support will response for your question within 24 hours
C. Free replacement will provide once the failure confirmed caused or our product quality; Not satisfied with a refund.


For more information, please contact:



WeChat: +86-137 6419 5009 ; +86-135 8585 5390

WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390

Email: ;



Recommended Products
Get in touch with us
Tel : 13764195009
Fax : 86-021-54380177
Characters Remaining(20/3000)