Twist drill point splitting/web thinning apparatus
US4485596A · kind A · utility
16Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1982 |
| Grant date | Dec 4, 1984 |
| Priority date | — |
| Expiry date | Sep 9, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B3/32
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A fluted twist drill point splitting/web thinning apparatus is disclosed which permits simple point splitting/web thinning of conventional sharpened twist drills. The apparatus is uniquely designed such that either of the two operations, that is point splitting or web thinning, can be simply and accurately carried out with the same assembly. The apparatus also includes the provisions of a grinding wheel dressing diamond mounted on a forward face of the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.