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Downhole servicing tools
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Multi-Function Overshot
    The multi-function overshot is a kind of composite fi shing tool used for fi shing of catches in different sizes such as sucker rod , coupling , weight drill pipe and well logging instrument out of casing. Without replacing of slip , the multi-function overshot can be used for fishing of sucker rod body at Φ16- 25mm, coupling at 16-22mm and well logging instrument at 35-42mm.
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