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IADC 617


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" 17-1/2"
BITS SIzE (mm) 215.9 241.3 444.5
IADC CODE 617 617 617
Connectionbuckle type 4-1/2"API-REG 4-5/8"API-REG 7-5/8"API-REG
RecommendedRPM (r/min) 200-50 200-50 200-50
RecommendedwOB(KN/mm) 0.45-1.1 0.45-1.1 0.45-1.1




Suitable for medium-hard formaiton with high compressive strength



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


High quality tungsten carbide tricone tooth

   Reduce wear、increase the crushing capacity and life of bit


Optimize water conservancy structure

   Enhance the self-washing ability and life of bit


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