bit Diameter:444.5mm
bit IADC code:517/537
Nozzles: 3 lateral jet nozzles
bearing type: rubber sealed Journal
drilling speed: 40-180 RPM
drilling pressure:0.35-1.0KN
dimension:455*455*650mm
weight: 220/260kg
Application formation:
low compressive strength, the soft, hard abrasive interlayer, such as hard shale, anhydrite, soft limestone, sandstone, dolomite, etc
spoon-shaped top side in rows of teeth, wedge-shaped outer rows of teeth, tooth cloth is not equidistant
pakcages:fumigation wooden case
delivery time:2days for stock, 35 days for manufacturing
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Recommend Drilling Technical Parameters
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IADC code
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WOB(KN/mm)
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RPM(r/min)
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Suitable formation
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116,117
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0.35-0.80
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40-180
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Very soft
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126,127
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0.35-0.90
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40-180
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Soft
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136,137
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0.35-1.00
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40-160
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Soft to medium
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216,217
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0.4-1.00
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60-120
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medium
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417,437
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0.35-0.90
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40-180
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Very soft
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517,527
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0.40-0.95
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40-160
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Soft to medium
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537,547
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0.45-1.00
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40-120
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Medium to hard
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617,627
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0.45-1.05
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40-90
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Hard
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637
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0.50-1.20
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50-80
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Very hard
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The Advantages to Use Tricone BitsThan Other Kinds of Rock Bits
1) There is a tricone suitable for any rock formation
2) Tricone bits are versatile and can handle changing formations
3) Tri cones Are reasonably priced with long life and good rate of drilling
