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PDC bits with anchor-shank
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The wings of cutter are made from PDC.They have faster drilling speed and longer life when drilling soft to medium stratum(f≤10).
Drilling holes without the contract og the diameter,the quality of the drilled hole is perfect and decreasing the waste of rolled up powder and anchor-shank.
Need not repeat replacing and grinding the bits,and increase supporting efficiency,decrease the labour strength.
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Φ25 Φ27
Φ28 Φ29
Φ32 Φ36
Φ42.
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