Rock 17-1/2" Tricone Drill Bit For Water / Oil / Mining Well Drilling Tools

Place of Origin China
Brand Name ENG
Certification API, ISO
Model Number 535
Minimum Order Quantity 1
Price 3000-7000 usd/pc
Packaging Details Wooden Box
Delivery Time 4 weeks
Payment Terms L/C,T/T
Supply Ability 5000 pcs / year

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Product Details
Diameter 17-1/2" Connection Type API Reg 7-5/8"
Machines Drilling Rig Machines Drill Water Well Drilling
Bit Type TCI Tricone Bit
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Rock Tricone Drill Bit

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Mining Well Drilling Tricone Drill Bit

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17-1/2” Tricone Drill Bit

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Product Description


Tricone Drill Bit of water /oil / Mining Well Drilling Tools





Product Tricone Drill Bit
Model Steel Tooth Bit (Milled Tooth Bit),TCI Bit
IADC CODE (Milled Tooth) 116 117 126 127 136 137 216 217 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347
IADC CODE (TCI  Tooth) 417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525 625 635 416 427 436 446 447 516 526 537 547 516 536 535
Available sizes From 3 5/8" to 26"

Used as hole opener bit , reamer bit
Advantage Most favorable price and best quality
Bearing type Sealed bearing Bit and Non-sealed bearing Bit

Metal sealed Journal bearing and Sealed Rolling Bearing

Rubber sealed journal bearing and sealed Rolling Bearing

aircooled bearing type
Formation or layer soft,medium soft ,hard, medium hard, very hard formation
Tricone Bit Additional Features : Button bit,saw teeth

1) Y-Conical teeth 2) X-chisel teeth

3)K- wide teeth 4)G- Gague protection

5)C- Center Jet 6) L- Lug Pads

7)W- Enhanced Cutting Structure 8) R-Reinfource Welds

9)M- Motor Application 10)E-Extend Jet
Application Area Petroleum & gas Well ,water well ,mining and tectonic industries ,oil field, construction, geothermal, directional boring, and underground foundation work




TCI Tricone Bits  feature  :

Tungsten carbide inserts, excel in drilling operations in middle to hard rock formations. These bits offer a variety of carbide inserts, including spherically shaped inserts for very hard rock and conically shaped inserts for softer rock, catering to the diverse hardness levels encountered during drilling endeavors.

The number of insert rows directly correlates with the application type and hole size, ensuring customizable configurations for optimal drilling performance. Operators can choose between open and sealed bearings, along with three shirttail protection options, enhancing durability and performance in challenging drilling conditions.


Rock 17-1/2" Tricone Drill Bit For Water / Oil / Mining Well Drilling Tools 0





 Bearing Types


There are primarily three types of Open and seal bearing designs used in tricone drilling bits:


• STANDARD OPEN BEARING ROLLER BIT:

On these bits the cones will spin freely. This type of bit has a front row of ball bearings and a back row of roller bearings.


• SEALED BEARING ROLLERS BITS

These bits have an O-Ring seal with a grease reservoir for bearing cooling. The seals acts as a barrier against mud and cuttings to protect the bearings


• JOURNAL BEARING ROLLER BITS

These bits are strictly oil/grease cooled with nose bearings, O-Ring seal and a race for maximum performance.


Rock 17-1/2" Tricone Drill Bit For Water / Oil / Mining Well Drilling Tools 1







 The tricone feature is that they come with their own passport as below :

  • The specification of the cones
  • The recommended drilling parameters to get the best performance out of the bit:
  • Bit weight
  • Rotation speed
  • Flushing volume




Which type of tricone you should choose ?


It depends on the geology you are drilling in and the diameters of the borehole you are drilling.

The International Association of Drilling Contractors (IADC) have developed an easy use step system to choose the right tricone for your geology with additional features such as bit protection for longer production life.