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HOLE OPENER

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  Hole Opener is usedto enlarge big surface hole in onshore and offshore oil field, that is, it is used to enlarge the hole pre-drilled by tricone bit, or it is connected above the drill bit to complete the drilling and enlarging operations at the same time. There are three type for cutter: type “SM“used for soft to medium formation; type “MH” used for medium to hard formation; type “XH” used for hard formation.

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