Drilling tool
US9085033B2 · kind B2 · utility
1Cited by
24References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2010 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | May 17, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/9097
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drilling tool includes a tool shank disposed about a center longitudinal axis. The tool shank having a holding region structured to be chucked in the chuck of a machine tool and an active region extending from the holding region. The drilling tool further includes at least two partial cutting edges formed on an end face of the active region and running at right angles to the center longitudinal axis and form a drill main cutting edge and a clearance formed in the end face between the partial cutting edges. The clearance being recessed axially along the center longitudinal axis toward the tool shank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.