Carbide coal bit:
Applications: apply to the anchor-network support hole drilling in coal mine, hydraulic project. Etc.
Characteristics:
- High wear resistance and impact-resistance toughness.
- To repeat repair & greaning are not necessary, long drill life.
- High efficiency could be promoted sharply in penetration of high-medium hard rock formation.
- Labour intensity could be reduced.
- Rock formation to be suitable t:f=4-12
3 wings/ 2 wings
Product description:
The coal bits are mainly used in coal and mine drilling.
We can do different measures according to customer’s requirements.
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Colliery Drilling Tools
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Main Standard(mm)
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|||
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D
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H
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L
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M
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Thread joint
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27
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44
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17
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M14×1.5
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27
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54
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17
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M12×1.75
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|
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28
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54
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20
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M12×1.75
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|
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29
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52
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18
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M14×1.5
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|
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30
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50
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18
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M14×1.5
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|
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32
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52
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22
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M14×1.5
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|
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32
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56
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22
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M12×1.75
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