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US 2021/0245277 A1Published application
Reamer
AssigneeA.L.M.T. Corp.
InventorsSakuya TANAKA, Koji SAWA
Life of this patent
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Abstract
A reamer includes a core, a plurality of outer-circumference cutting edges provided on an outer circumference of the core and made of a hard tool material, and a margin provided on a rear side of each the plurality of outer-circumference cutting edges in a rotational direction. A distance from an axis of rotation to a position of a center of gravity of the reamer is greater than 0.01 mm and not greater than 0.5 mm.
Claims3
A reamer comprising:
- a core;
- a plurality of outer-circumference cutting edges provided on an outer circumference of the core and made of a hard tool material;
- and
- a margin provided on a rear side of each of the plurality of outer-circumference cutting edges in a rotational direction,
- wherein a distance from an axis of rotation to a position of a center of gravity of the reamer is greater than 0.01 mm and not greater than 0.5 mm.
2 more elements
Dependencies are inferred from the claim text.