Drilling tool and method for drilling
US9248511B2 · kind B2 · utility
0Cited by
19References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 2008 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Feb 4, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/9095
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drilling tool extends in a longitudinal direction and has a drill point and first and second major cutting edges, which extend approximately radially outward. The drill point is arranged eccentrically relative to a central axis, which is the same as the axis of rotation. The second major cutting edge is arranged by a cutting-height difference higher than the first major cutting edge. The first major cutting edge has a shorter radial edge length than the second major cutting edge. A method of utilizing the tool is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.