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Help CenterAPI&ISO Quality9 5/8" Insert Tooth Tricone Rock Roller Bit/oil Drilling Equipment Kingdream High Quality
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| Technical data | ||||||||
| IADC | WOB | RPM | Applicable Formations | |||||
| Kn/mm | r/min | |||||||
| 417 | 0.35-0.9 | 150~70 | Very soft formation with low compressive strength and high drillability,such as clay,mudstone,gypsum,salt, soft shale,soft limestone,etc. | |||||
| 437 | ||||||||
| 447 | ||||||||
| 517 | 0.35-0.95 | 150~60 | soft formation with low compressive strength and high drillability,such as mudstone,gypsum,salt, soft shale,soft limestone,etc. | |||||
| 527 | ||||||||
| 537 | 0.45-1.0 | 120~50 | soft to medium formation with low compressive strength and high drillability,such as medium soft shale,edium soft limestone,medium soft sandstone,medium formation with harder and abrasiver inerbeds,etc. | |||||
| 547 | ||||||||
| 617 | 0.45-1.1 | 90-50 | medium hard formation with high compressive strength,such as hard shale,limestone,sandstone,dolomite,etc | |||||
| 627 | ||||||||
| 637 | 0.5-1.2 | 80-40 | hard formation with high compressive strength,such as shale,limestone,dolomite,hard gypsum,marble,etc | |||||
Features of 9 7/8 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
.Advantages of 9 7/8 tci bits
1.Suitable for medium to medium hard formation of high Crushing Resistance
(hard shale,sands,etc.)
2.Bit bearing is sealed journal bearing.
3.Hardfacing is applied on the shirttail,and carbide inserts for gage protection
are pressed into the head OD.
4.Cone gage surface is reinforce with carbide compacts.
5. Partial top spoon shaped inner row of teeth, the wedge outer row of teeth is not equidistant
teeth, in the back cone tooth and the outer row of teeth between adds a row of trimming gear
6. High compressive strength, hard and abrasive high formation, such as limestone, dolomite,sandstone, chert and other
Detailed pictures
ZhongCheng Certificate
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