PDC two wings anchor shank coal bit
Application:
Apply to the anchor-network support hole drilling in coal mine, transportation, hydropower, and so on.
Characteristics: high wear resistance and impact-resistant toughness; long drilling life,, drilling efficiency can be promoted sharply in penetration of soft and medium soft formation; laber intensity can be reduced.
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Colliery Drilling Tools
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Main Standard(mm)
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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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28
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54
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20
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M12×1.75
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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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