ROSCHEN GROUP
Quality Changes The World!
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Gas Mining Milled Tooth Drill Bit Three Cone Bit Wear Resistance
Three Cone Bit Introduction
Three Cone Bit are much more durable than Steel Tooth tricon bits, but carry a higher cost to manufacture.
Both these two groups of Tricone Bits are available with
(1) Open Bearing or Sealed Bearing
(2) Roller Bearing or Friction Bearing (Journal Bearing)
(3) Gage Protected or Non-Gage Protected, etc
Thri Cone Bit Parameters
| TRICONE DRILL BITS - STANDARD CONNECTION SIZES * | |
| SIZE | STANDARD PIN CONNECTION |
| 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. | |
FAQ
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.
Package:
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
Transportation:
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:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net