API 9 7/8'' IADC216 milled tooth tricone rock bit for oil drilling
USD $300 - $8,000 /Piece
Min.Order:1 Piece
Hejian Zhongcheng Drill Bit Manufacture Co., Ltd.
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
Second Digit | FORMATION |
1 | 1, 2, 3 and 4 are further breakdown of formation with 1 being the softest and 4 the hardest. |
2 |
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3 |
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4 |
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Third Digit | BEARING / SEAL TYPE |
1 | Standard open bearing roller bit |
2 | Standard open bearing roller bit, air-cooled |
3 | Standard open bearing roller bit with gauge protection which is defined as carbide inserts in the heel of the cone |
4 | Sealed roller bearing bit |
5 | Sealed roller bearing bit with gauge protection |
6 | Journal sealed bearing bit |
7 | Journal sealed bearing bit with gauge protection |
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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?