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3" IR DHD3.5 Down the hole DTH button drill bits for rock drilling

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3" IR DHD3.5 Down the hole DTH button drill bits for rock drilling

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3" IR DHD3.5 Down the hole DTH button drill bits for rock drilling

Product specifications: For 3" hammer DTH bits shank Bit Dia. No. Air Holes Gauge Buttons Front Buttons Weight (Kg) Part No. mm inch COP32 85 3 11/32" 2 6×φ13 4×φ12 4.2 COP32-85 90 3 1/2" 2 6×φ14 4×...

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dth button bits

dth hammer bits

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