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Tricone rock bit IADC417 6"(152.4mm) The 417 tci bits are used to drill low compressive strength,very soft formations .TCI bits maximize the use of bothconical and chisel tungsten carbide inserts of large diameters and high projection.This cutting sstructure design,combined with maximum cone offset,results in high bit penetration rates .The deep intermesh of cutter rows prevents bit bailing in sticky formations.Normal WOB KN/mm (bit dia): 0.35~0.90 RPM:140~70 r/min |
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Basical Specification |
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Size of Rock Bit |
6 inches |
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152.40 mm |
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Bit Type |
TCI Tricone Bit |
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Thread Connection |
3 1/2 API REG PIN |
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IADC Code |
IADC 417G |
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Bearing Type |
Journal Sealed Bearing with Gauge Protection |
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Bearing Seal |
Elastomer/Rubber |
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Heel Protection |
Available |
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Shirttail Protection |
Available |
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Circulation Type |
Mud Circulation |
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Drilling Condition |
Rotary drilling,high temp drilling,deep drilling,motor drilling |
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Total Teeth Count |
77 |
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Gage Row Teeth Count |
41 |
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Number of Gage Rows |
3 |
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Number of Inner Rows |
6 |
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Jounal Angle |
33° |
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Offset |
4.8 |
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Operating Parameters |
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WOB (Weight On Bit) |
11909-30783 lbs |
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53-137KN |
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RPM(r/min) |
300~60 |
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Recommended upper torque |
9.5-12.2KN.M |
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Formation |
Soft formation of low crushing resistance and high drillability. |