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iadc 637 drill bits

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81/2" TCI Single Tricone Cutter for Foundation Pile Drilling

81/2" TCI Single Tricone Cutter for Foundation Pile Drilling
product name: 81/2" TCI single tricone cutter for foundation pile drilling model:81/2" IADC637 bearing: rubber sealed bearing usage: foundation pile drilling application formation: medium hard rock ...

660mm Rock Hole Opener for Water Well Drilling Rig

660mm Rock Hole Opener for Water Well Drilling Rig
Product name: 660mm Rock Hole Opener for Water Well Drilling Rig Size: 660mm Pilot bit size: 81/2" Tricone cutter quantity: 9 Tricone cutter model: 81/2" IADC 637 Connection thread: 75/8" API Reg ...
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