CYLINDRICAL HEAD BORING TOOL, IN PARTICULAR A FORSTNER BIT
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United States of America Patent
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Issued Date -
Nov 24, 2022
app pub date -
Nov 4, 2020
filing date -
Nov 4, 2020
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Abstract
A cylindrical drill bit includes at least one set of circumferential cutting edges positioned at a circumference of the drill bit; the circumference is centred to a longitudinal rotational axis; each set of circumferential cutting edges includes at least two circumferential cutting edges; and the at least two circumferential cutting edges have a mutually different radial distance from the longitudinal rotational axis.
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