Dennis with a drill bit at the Norwegian Petroleum Museum
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Using a 3mm drill bit and it folded up. I have had many snap, first one ever done this.
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11/15/2015 Stuck drill bit
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Baker Hughes 26" Kymera Hybrid Drill Bit, Tórshavn
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The use of a 2.5mm drill bit in a holder is reccomended, be careful not to enlarge orrifice
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