Counterbore for the bilateral attachment of plane surfaces to bolt holes
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United States of America Patent
Stats
-
Jul 12, 1988
Grant Date -
N/A
app pub date -
Jan 29, 1987
filing date -
Jan 29, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A counterbore for the bilateral mounting of plane surfaces on through holes that consists of a tool head that may be driven rotationally by means of a shank. The counterbore has two cutting heads with cutting edges pointing in opposite directions. The cutting heads are guided within the tool head in take-up slots in such a way that they may be moved out radially and fixed in a preselected position. The cutting heads lie against one another within the area of the take-up slots. In order that high cutting forces may be transmitted easily in a tool head of small dimensions, the cutting heads are guided through a guide slot extending in a radial direction and positioned in the take-up slots of the tool head.
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