Drill and a chuck for receiving the drill shank
US6176655A · kind A · utility
14Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1999 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Feb 18, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/95
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drill bit having a drill body and a drill shank including a substantially cylindrical guide portion (10) having at least one guide surface (101, 102), and a locking portion (11) projecting radially beyond the guide portion and having locking surfaces (111, 112) extending substantially perpendicular to a longitudinal axis of the drill bit, with the locking portion (11) having, perpendicular to the drill bit longitudinal axis, a non-circular cross-section; and a drill chuck for receiving the shank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.