• 12 1/4" Tricone Bit for Well Drilling
  • 12 1/4" Tricone Bit for Well Drilling
  • 12 1/4" Tricone Bit for Well Drilling
  • 12 1/4" Tricone Bit for Well Drilling
  • 12 1/4" Tricone Bit for Well Drilling
  • 12 1/4" Tricone Bit for Well Drilling

12 1/4" Tricone Bit for Well Drilling

Type: Core Drill
Usage: Metal Drilling, Masonry Drilling, Well Drilling, Wood Drilling
Certification: API
Name: Tricone Drill Bit
China: China Tricone Drill Bit
China Bit: China TCI Tricone Bit
Customization:
Gold Member Since 2017

Suppliers with verified business licenses

Manufacturer/Factory

Basic Info.

Model NO.
ROS 12 1/4"
Bit
China Roller Cone Bit
Supplier
China Bit Supplier
Drilling
Tricone Drill Bit Wiki
Manufacturers
Tricone Rock Roller Bits Manufactur
Drill Bits
China Tricone Roller Cone Drill Bits
Rock Bits
China Tricone Rock Bits
New
2017 Tricone Bits Manufacturing
Transport Package
Wooden Box
Specification
12 1/4"
Trademark
ROSCHEN
Origin
China
HS Code
843143210
Production Capacity
2600

Product Description

Tricone Roller bit is the most widely used drilling bit. When the roller cone bit is working, the cutting teeth alternately contact the bottom of the well, the torque of breaking the rock is small, the contact area between the cutting tooth and the bottom of the well is small, the specific pressure is higher, and it is easy to eat into the formation; the total working length of the working blade is large, thus relatively reducing the wear. Roller bit can adapt to a variety of formations from soft to hard.

According to the number of cones, it can be divided into single-cone bit, tri-cone bit, and assembled multi-cone bit. According to the cutting material can be divided into steel teeth (milled teeth) and insert tooth bit.


Features: 

First Digit(1~8):
-1,2, and 3 designate STEEL TOOTH BITS with 1 for soft,2 for medium and 3 for hard formations.
-4,5,6,7 and 8 designate TUNGSTEN CARBIDE INSERT BITS for varying formation hardness with
4 being the softest and 8 the hardest.


Second Digit(1~4):
 -1,2,3, and 4 are further breakdown of formation with 1 being the softest and 4 the hardest .
 

Third Digit(1~7):

This digit will classify the bit according to bearing/seal type-see information on different bearing types-and special guage wear protection as follows:

-1. Standard open bearing roller bit.
-2. Standard open bearing roller bit,air-cooled.
-3. Standard open bearing roller bit with gauge protection which is defined as carbide inserts in the heel of the cone.
-4. Sealed roller bearing bit.
-5. Sealed roller bearing bit with gauge protection on heel  of cones.
-6. Journal sealed bearing bit.
-7. Journal sealed bearing bit with gauge protection on heel of cones.


Feature Code:
The following letter codes are used in the fourth digit position to indicate additional features:
A. Air Application
R. Reinforced Welds
C. Center Jet
S. Standard Steel Tooth
D. Deviation Control 
X. Chisel Insert 
E. Extended Jet 
Y. Conical Insert 
G. Extra Gage Protection 
Z. Other Insert Shape 
J. Jet Deflection 
 
 
Roschen specialize in researching and production of rock drilling tools, mainly includes tricone bits, PDC bits,  hole opener, foundation roller cones and related tools, application fields includes oil well drilling, gas well drilling, geothermal well drilling, mining, geological survey, hydrographic survey, water well drilling,  HDD pipelines projects, foundation projects.
 
With high-end equipment in the world, all of our activities are strictly complying with API specifications(Certificate No. Spec-7-1242) and ISO 9001:2008 standards. With professional technicists, we commit ourselves to provide optimized solutions for various of applications and requirement, customized solutions for specific projects is our working direction, we have same ultimate aim with customers--"Lower the cost of drilling per meters, achieve the most cost effective".   


 
NO. TRICONE ROCK BIT SIZE REG.PIN API
in mm
1 3 3/4 95.3 2 3/8
2 3 7/8 98.4 2 3/8
3 4 1/8 104.8 2 3/8
4 4 1/4 108 2 3/8
5 4 1/2 114.3 2 3/8
6 4 5/8 117.5 2 7/8
7 4 3/4 120.7 2 7/8
8 4 7/8 123.8 2 7/8
9 5 1/2 139.7 3 1/2
10 5 5/8 142.9 3 1/2
11 5 2/3 143.9 3 1/2
12 4 3/4 146.1 3 1/2
13 5 7/8 149.2 3 1/2
14 6 152.4 3 1/2
15 6 1/8 155.6 3 1/2
16 6 1/4 158.8 3 1/2
17 6 1/2 165.1 3 1/2
18 6 5/8 168.3 3 1/2
19 6 3/4 171.5 3 1/2
20 7 1/2 190.5 4 1/2
21 7 5/8 193.7 4 1/2
22 7 7/8 200 4 1/2
23 8 3/8 212.7 4 1/2
24 8 1/2 215.9 4 1/2
25 8 5/8 219.1 4 1/2
26 8 3/4 222.3 4 1/2
27 9 1/2 241.3 6 5/8
28 9 5/8 244.5 6 5/8
29 9 7/8 250.8 6 5/8
30 10 1/2 266.7 6 5/8
31 10 5/8 269.9 6 5/8
32 11 279.4 6 5/8
33 11 5/8 295.3 6 5/8
34 12 304.8 6 5/8
35 12 1/4 311.2 6 5/8
36 12  5/16 312.7 6 5/8
37 13 3/8 314.3 6 5/8
38 12  7/16 315.9 6 5/8
39 12 5/8 320.7 6 5/8
40 13 1/8 333.4 6 5/8
41 13 1/2 342.9 6 5/8
42 13 5/8 346.1 6 5/8
43 13 3/4 349.3 6 5/8
44 14 1/2 368.3 7 5/8
45 14 3/4 374.7 7 5/8
46 15 1/2 393.7 7 5/8
47 16 406.4 7 5/8
48 17 1/2 444.5 7 5/8
49 18 7/8 479.4 7 5/8
50 20 508 7 5/8
51 22 558.8 7 5/8
52 24 609.6 7 5/8
53 26 660.4 7 5/8
54 28 711.2 7 5/8
55 30 762 7 5/8



FAQ


Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.

Q: How about the delivery terms?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.

Q: How about discount?
A: Price is based on products and order quantity.

Q: Do you accept sample order?
A: Yes sure, please contact us for details.

Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.

Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products, Roschen always makes a serious inspection for all products and raw materials in strict procedure. We have obtained certificate of ISO9001:2000 in 2004.




For more information please contact:


 
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
 
 
  
 
Website: http://roschen.en.made-in-china.com 
 ; http://roschen.en.made-in-china.com 
http://roschen.en.made-in-china.com 

 

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