4 3/4 IADC 637 rock roller drill bit for hard formations/ rock drill head /TCI rock bit Manufacturer

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  • Material: 15CrNi4Mo
  • Use: Well Drilling
  • DIY Supplies: Plumbing
  • Type: Center Drill Bit
  • Model: TCI Tricone drill bit
  • Available size: 4 3/4inch
  • Thread Connection: 2 7/8REG
  • WOB(KN/MM): 0.70~1.20
  • RPM(r/min): 70~40
  • Advantage: Most favorable price and best quality
  • Bearing type: Sealed and non-sealed bearing
  • Formation: Hard formation
  • Nozzles: 1 pcs

  • Unit Type: piece
  • Package Weight: 15.0kg (33.07lb.)
  • Package Size: 19cm x 19cm x 25cm (7.48in x 7.48in x 9.84in)

Cheap drill polish, Buy Quality drill press bits directly from China drill bit stone Suppliers: 4 3/4 IADC 637 rock roller drill bit for hard formations/ rock drill head /TCI rock bit Manufacturer

  TCI Tricone drill bit      
Available size
4 3/4INCH
Thread Connection
2 7/8REG
Most favorable price and best quality
Bearing type
Sealed and non-sealed bearing
Water well ,oil well and mining drilling,underground exploration
Hard formation
Fumigation free wooden case
Delivery time
3-7 days
Delivery terms
By sea or by air
Payment term
T/T ,L/C, Papyl
USA,Middle east,Canada,Africa,etc.
1.Features of  tci bits
1.Size:2 7/8" (70.0mm)~26" (660.4mm)
2.Cover all all IADC code
3.Reliable quality and best price
4.tungsten carbide insert tricone bit
5.certified by ISO,API
6.high efficiency
2.Advantages of  tci bits
1.Suitable for medium to medium hard formation of high Crushing Resistance
(hard shale,sands,etc.)  
2.Bit bearing is non-sealed roller bearing.
3.Hardfacing is applied on the shirttail,and carbide inserts for gage protection
are pre


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