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TCl bit

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Product details

Nomenclature of RUlSHI Oil Well TCl Tricone Bit Model

IADC 5 3 3
IADC Code 1, 2, 3:
Milled teeth bits from very soft to hard formations
TCl bits,from very soft to hard formations
1, 2, 3, 4
from very soft to very hard formations,bits differ in number and size of cutters/inserts
1:Standard open roller bearing
2:Standard open roller bearing,air-cooled
3:Standard open roller bearing with gauge protection
4:Sealed roller bearing
5:Sealed roller bearing with gauge protection
6:Sealed friction bearing
7:Sealed friction bearing with gauge protection



BITS SIzE (in) 8-1/2" 9-1/2" 12-1/2"
BITS SIzE (mm) 215.9 241.3 311.1
IADC CODE 637R 637R 637R
Connectionbuckle type 4-1/2"API-REG 6-5/8"API-REG 6-5/8"API-REG
RecommendedRPM (r/min) 180-40 180-40 180-40
RecommendedwOB(KN/mm) 0.5-1.1 0.5-1.1 0.5-1.1




Suitable for extremely hard formations with high compressive strength and high abrasiveness



Wear-resistant coating

   Carbide wear-resistant material is applied to the palm tip and the edge of the tooth palm
   Increase wear resistance and life of the bit


Six-point stabilization system

   Make the cone bit contact the well wall through six stress points、improve the stability of bit and protect the integrity of cutting tooth structure


Gauge inserts of high-quality tungsten carbide alloy

   Reduce the wear of bit in grinding formations
   Improve the stability and life of bit


Hemi-spherical ended shape insert

   Better bending strength
   Further improve the wear resistance and life of bit


Optimize water conservancy structure

   Enhance the self-washing ability and life of bit


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