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US 10,744,575 B2Granted
Tip and drill
AssigneeKYOCERA Corporation
InventorKatsura Hayashi
Life of this patent
Estimating the term…
Abstract
A drill tip may include a first part and a second part. The first part includes a cutting edge located at a side of a first end, and a recess located at a side of a second end, where the first end is one side of a central axis and the second end is another side of the central axis. The second part includes a shank portion extending along the central axis, and an engaging portion which connects to the shank portion at a side of the first end and includes a diameter greater than the shank portion. The engaging portion is located in the recess.
Claims8
A drill tip, comprising:
- a first part comprising a cutting edge located at a side of a first end, and a recess located at a side of a second end, where the first end is one side of a central axis and the second end is another side of the central axis;
- and
- a second part comprising a shank portion extending along the central axis, and an engaging portion which connects to the shank portion at a side of the first end and comprises a diameter greater than the shank portion, wherein
- the engaging portion is located in the recess,
- the first part comprises a through hole extending from the recess toward a side of the first end, and
- the recess comprises a groove which connects to the through hole and extends toward a side of the second end.
3 more elements
Dependencies are inferred from the claim text.