• API-7-1 Standard Inserted Tooth Tricone Bit/Milled Tooth Tricone Bit for Well Drilling
  • API-7-1 Standard Inserted Tooth Tricone Bit/Milled Tooth Tricone Bit for Well Drilling
  • API-7-1 Standard Inserted Tooth Tricone Bit/Milled Tooth Tricone Bit for Well Drilling
  • API-7-1 Standard Inserted Tooth Tricone Bit/Milled Tooth Tricone Bit for Well Drilling
  • API-7-1 Standard Inserted Tooth Tricone Bit/Milled Tooth Tricone Bit for Well Drilling
  • API-7-1 Standard Inserted Tooth Tricone Bit/Milled Tooth Tricone Bit for Well Drilling

API-7-1 Standard Inserted Tooth Tricone Bit/Milled Tooth Tricone Bit for Well Drilling

Type: Core Drill
Usage: Metal Drilling, Masonry Drilling, Well Drilling, Wood Drilling
Certification: API
Supplier: China Tricone Bits Manufacturers
Manufacturer: Tricone Bits Manufacturers
China: Tricone Bits Suppliers
Customization:
Gold Member Since 2017

Suppliers with verified business licenses

Manufacturer/Factory

Basic Info.

Model NO.
ROS 3 7/8~36"
Rotary Drill Bits
Tricone Rotary Drill Bits
Item Name
Tricone Roller Cone Drill Bits
Series No
Tricone Drill Bits
Item No
Tricone Bit
Item
Tricone Rock Bits
Series
Tricone Drill Bit
Model Name
Hughes Tricone Bits
Transport Package
Wooden Box
Specification
3 7/8~36"
Trademark
ROSCHEN
Origin
China
HS Code
843143210
Production Capacity
2000

Product Description

API Spec.7,Cone Bit for oil well, cone inserts tricone rock bit 

There are rich and diverse roller bits to meet different requirements of formations and rotary speeds. The sizes of the gage diameter and the types of bit are strictly designed in accordance with the standards API Spec.7, with the certificate of authority to use the official API monogram.

There are not only rubber sealed bearing bits but also metal face sealed bearing bits, and all bits are lubricated by new type of wear resistant grease that can sustain high temperature up to 250°C.

The surfaces of main or key parts are hard faced and treated with friction reducing technology. They can enhance gage protection and prolong the life of bit.

Center nozzle is equipped for bits of larger sizes..


Specifications: 
Size IADC Code API Regular Pin (in)
      in        mm
    3 7/8   126 617  
    4 1/4        107.9 131 321 2 3/8
    4 5/8        117.5 121 241 527 2 7/8
    4 3/4        120.6 241
    5 5/8       142.9 121 241 321 537 3 1/2
    5 7/8       149.2 241 321 517 537 547 617 637
     6       152.4 211 216 246 437 517 527 537 547 617 637
    6 1/8       155.6 117 211 437 517
    6 1/4       158.7 121 241 321 517 527 537 547 637
    6 1/2       165.1 517
    6 3/4       171.4 121 241 321
     7 1/2       190.5 121 124 134 217 244 517 527 547 617 4 1/2
     7 7/8       200 121 124 131 134 241 321 517 527 547 617
     8 3/8       212.7 215 217 517 527 537 547 617 637
     8 1/2       215.9 114 116 117 121 124 126 127 131 134 137 211 216 217 241 247 321 437 447 517 527 537 547 617 637 837
     8 3/4       222.2 127 417 437 447 517 537 617
     9 1/2       241.3 117 124 125 127 437 517 527 537 617 637 6 5/8
     9 5/8       244.5 114 121 124 131 134 437 517 527
     9 7/8       250.8 115 121 211 241 321 512 542 612 732
      10       254 126
    10 5/8       269.9 127 217 417 517 527
    11 5/8       295.3 117 127 137 217 417 517 537 547
       12      304.8 124 126 216 517 537 547 617
     12 1/8      308 547
     12 1/4      311.1 114 115 116 117 121 124 126 131 134 137 211 214 244 437 517 527 537 547 617 637
     13 5/8      346.1 114 115 121 124 437 515 517
     13 3/4      349.2 114 115 437 517
     14 3/4      374.6 136 127 517 527 7 5/8
15      381 121 124 241 244
     15 1/2      393.7 125 215 217 517 537
        16      406.4 115 215 515 535 545
     17 1/2      444.5 435 515 437 517 527 537 547
        18      457.2 547
     18 1/2      469.9 547
     19 1/4      489 115 225
        20      508 125 215 515 525
        22      558.8 124
        24     609.6 124
        26     660.4 114 124 134 525
36     914.4 124

Size IADC Code API Regular 
Pin (in)
 in mm
3 7/8 98.425 126 617  
4 1/4 107.9 131 321 2 3/8
4 5/8 117.5 121 241 527 2 7/8
4 3/4 120.6 241
5 5/8 142.9 121 241 321 537 3 1/2
5 7/8 149.2 241 321 517 537 547 617 637
6 152.4 211 216 246 437 517 527 537 547 617 637
6 1/8 155.6 117 211 437 517
6 1/4 158.7 121 241 321 517 527 537 547 637
6 1/2 165.1 517
6 3/4 171.4 121 241 321
7 1/2 190.5 121 124 134 217 244 517 527 547 617 4 1/2
7 7/8 200 121 124 131 134 241 321 517 527 547 617
8 3/8 212.7 215 217 517 527 537 547 617 637
8 1/2 215.9 114 116 117 121 124 126 127 131 134 137 
211 216 217 241 247 321 437 447 517 527 537 547 617 637 837
8 3/4 222.2 127 417 437 447 517 537 617
9 1/2 241.3 117 124 125 127 437 517 527 537 617 637 6 5/8
9 5/8 244.5 114 121 124 131 134 437 517 527
9 7/8 250.8 115 121 211 241 321 512 542 612 732
10 254 126
10 5/8 269.9 127 217 417 517 527
11 5/8 295.3 117 127 137 217 417 517 537 547
12 304.8 124 126 216 517 537 547 617
12 1/8 308 547
12 1/4 311.1 114 115 116 117 121 124 126 131 134 137 
211 214 244 437 517 527 537 547 617 637
13 5/8 346.1 114 115 121 124 437 515 517
13 3/4 349.2 114 115 437 517
14 3/4 374.6 136 127 517 527 7 5/8
15 381 121 124 241 244
15 1/2 393.7 125 215 217 517 537
16 406.4 115 215 515 535 545
17 1/2 444.5 435 515 437 517 527 537 547
18 457.2 547
18 1/2 469.9 547
19 1/4 489 115 225
20 508 125 215 515 525
22 558.8 124
24 609.6 124
26 660.4 114 124 134 525
36 914.4 124



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. 

API-7-1 Standard Inserted Tooth Tricone Bit/Milled Tooth Tricone Bit for Well Drilling
API-7-1 Standard Inserted Tooth Tricone Bit/Milled Tooth Tricone Bit for Well Drilling



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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