TOOL FOR ROUGHENING A BOREHOLE SURFACE
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United States of America Patent
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Issued Date -
Apr 18, 2019
app pub date -
Sep 19, 2016
filing date -
Sep 23, 2015
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Abstract
A tool for roughening a borehole surface. The tool includes a coupling portion for clamping the tool in a drilling machine; and a tool head for machining the borehole surface, where the tool head has an outer shell surface on which a cutter protrudes laterally from the shell surface, and where the outer shell surface has a camber along the longitudinal direction of the tool.
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