Rotary cutting head having a rigid mounting protuberance and rotary cutting tool
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United States of America Patent
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Sep 7, 2021
Grant Date -
Sep 12, 2019
app pub date -
Jan 30, 2019
filing date -
Mar 7, 2018
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A cutting head rotatable about a first axis, has a cap portion and a rigid mounting protuberance joined thereto. The cap portion has a plurality of cutting portions circumferentially alternating with a plurality of head chip flutes, and a head base surface facing in an axial rearward direction. The mounting protuberance exhibits rotational symmetry about the first axis, extends axially rearwardly from the head base surface, and has a plurality of circumferentially spaced apart convex clamping surfaces. The plurality of cutting portions define a cutting diameter, the plurality of head chip flutes are inscribed by an imaginary first circle having a first diameter, and the plurality of clamping surfaces are circumscribed by an imaginary second circle having a second diameter. The first diameter is greater than the second diameter, and the second diameter is less than forty percent of the cutting diameter.
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