8 Free Photos of Drill Cores

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Benny Hopson from the Barrow Arctic Science Consortium in Alaska drills a core sample from sea ice in the Chukchi Sea on July 4, 2010.
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Core drills masonry
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Concrete core cutters
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Concrete core cutters
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One and one quarter inch hole saw bit
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Personnel evasion and recovery drill, RIMPAC 2014 140711-N-PX130-076
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Stacked mine historically
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USACE Nashville District geologist
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