Indexable thread forming tap
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jan 3, 2017
Grant Date -
May 14, 2015
app pub date -
Jun 6, 2012
filing date -
Jun 6, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
An indexable thread forming tap including: a body in a shaft shape; and a tip concentrically and detachably attached to a leading end portion of the body by screw-fastening and rotationally driven around an axial center along with the body for rolling of a female thread, the body being disposed with a screw hole concentrically to the axial center such that a screw shaft disposed on the tip concentrically to the axial center is screwed into the screw hole for the screw-fastening, a leading end surface of the screw shaft being pressed against a bottom surface of the screw hole into close contact with each other by the screw-fastening to integrally fix the tip to the body without the leading end of the body abutting on the tip, the body being disposed with a restraining hole concentrically to the axial center.
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