• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Place of Origin: Hebei, China (Mainland)
  • Brand Name: Deris
  • Model Number: HF537~HF737
  • Type: Center Drill Bit
  • Material: Tungsten Carbide
  • Use: Well Drilling
  • bearing type: journal bearing
  • material: tungsten carbide insert
  • sealed type: metal sealing
  • IADC: 537~737
  • size: 7 7/8"~12 1/4"
  • API pin: 4 1/2"~6 5/8"
  • Process: Forging
  • maximum drilling depth: 2000m
  • rotary speed: 200~80rpm
  • certification: ISO9001

Packaging & Delivery

Packaging Details wooden box tricone drill bits
Delivery Time within 7days

hard rock drilling seal roller bearing 7 1/2"iadc 537 HF tci tricone drill bits


Product Description

 What is product Specification                                                  

 Basical Specification
 Size of Rock Bit7 1/2"(190.5mm)
Thread Connection4 1/2" Reg Pin 
IADC Code 537G
Bearing type Rubber /Metal sealed journal bearing 
Feature Gauge protect 
Operating Parameters
Weight on Bit 0.50~1.05KN/mm(Bit Dia.)
Rotary speed 20~40(r/min)
How to aplication of TCI tricone bit                                          






Applicable Formations





Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, gypsum, salt, soft limestone, etc.




Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc.




Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc.




Medium hard formation with high compress strength, such as hard shale, limestone, sandstone, dolomite. etc




Hard formations with high compressive strength, such as sandstone, limestone, dolomite ,hard gypsum, marble, etc.

Note: The upper limits of WOB and RPM in above table should not be used simultaneously.


product produce flow

 What is roller cone bits produce process                                

products show

  roller cone bit Picture                                                               




Our Factory

 Company information 

Hejian Deris Petroleum drilling equipment Co., Ltd is a professional manufacturer and supplier which has rich experience in drilling well line. 


Our products include TCI Tricone bit, Steel tooth tricone bit, PDC bit (marix & steel body), Hole opener (HDD Reamer bit ), Single bit, Drag bit, PDC cutter, Drilling pipe etc.


We have won strong reputation in oil & gas industries construction, geothermal, water well and mining all over the world.


Welcome to visit our factory 



Contact Us

How to contact with us ?                                                             

Send your inquiry Detail in the below for free sample Click "send"now ".... below chat now " choice Jenny Shen 




Drag bit 

hole opener


Packaging & Shipping
Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview


Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
Trade Assurance
China (Mainland) | Trading Company
Transaction Level:
Supplier Assessments:
1 Transactions 900+
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 $31,000
Learn More