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Help Center9 7/8 Mill Tooth Bit Drill Bit
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Open Bearing Mill Tooth Bit
Cutting Structure
The durability of premium tungsten carbide insert is improved with new formulas and new techniques and new techniques.
The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces.
Bearing Structure
Nonsealed roller bearing. Drilling fluid can enter the bearing directly for cooling; Balls lock the cone which reduces the
probability of cone ropping to minimum.
Product Application
It is suitable for the shallow well, water well and geothermal well.
Recommended Drilling Parameter
IADC |
WOB (KN/mm) |
RPM (r/min) |
Applicable Formations |
111 |
0.3~0.75 |
200~80 |
Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc. |
121 |
0.3~0.85 |
200~80 |
Soft formations with low compressive strength and high drillability, such as mudstone,
gypsum, salt, soft limestone, etc. |
131 |
0.3~0.95 |
180~80 |
Soft to medium formations with low compressive strength and high drillability, such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
211 |
0.35~0.95 |
180~80 |
Medium formations with high compress strength, such as medium soft shale, hard gypsum , medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
241 |
0.35~0.95 |
180~70 |
Medium hard formations with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble,etc |
321 |
0.4~1.0 |
150~70 |
Hard semiabrasive formations, such as abrasive shale,limestone,sand stone,dolomite, hard gypsum,marble,etc. |
|
Note: The upper limits of WOB and RPM in above table should not be used simultaneously.
| |||
TCI Tooth Bit For Mineral And Geological/diamond Drill Bit/tricone Bit/water Well Drilling, High Quality Tricone Bit,Diamond Drill Bit,Water Well Drilling,
Tricone Tooth Bit,Tricone Bit, High Quality Tricone Bit,Tricone Rock Bit,Tricone Drill Bit,Tci Tricone Used Well Drilling Rock Bits,
High Quality Used Oilfield Drill Bits,Drilling Bits Water Well,Tungsten Carbide Dri
ll Rock Bit
Pls inform the following details to us before making an inquire
1) What size of drill bit do you need?
2) What is the IADC of drill bit you need?
3) What is the quantity you need?
4) Which kind of formation is the drill bit for?
Send Inquiry to This Supplier
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