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US 8,702,356 B2Granted
Fluted drill and fluted drill cutting head therefor
AssigneeIscar, Ltd.
InventorsGil Hecht, Danny Chen
Life of this patent
Estimating the term…
Abstract
A fluted drill has a drill body with a fluted drill cutting head removably secured thereto. The cutting head has two drilling portions facing axially opposite directions. In axial view, the cutting head has at least four through openings. Each drilling portion includes a plurality of head flute portions and a plurality of cutting head coupling portions.
Claims28
A fluted drill cutting head (14) comprising:
- two drilling portions (18A, 18B) facing axially opposite directions with respect to a head rotation axis (A),
- a plurality of cutting head coupling portions (19) and
- a plurality of head flute portions (42);
- wherein,
- in an axial view, the cutting head (14) has at least four see-through openings;
- each cutting head coupling portion (19) comprises a clamping recess (26), a cutting portion (22) and a non-cutting portion (24);
- the clamping recess (26) is located between the cutting portion (22) and the non-cutting portion (24);
- and
- a periphery of the clamping recess (26) is devoid of cutting edges.
6 more elements
Dependencies are inferred from the claim text.