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Long Spiral CFA Drilling Auger & CFA Starter
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Straight or Conical Drilling Auger
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Straight Rock Drilling Bucket or Soil Drilling Bucket
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Good Quality Construction Machinery Interlocking or Frictional Kelly Bar
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Core Barrel with Bullet Teeth or Roller Bits
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WS39 Quick Change Replaceable Casing Shoe or Cutting End
