CH589498A5 - - Google Patents
Info
- Publication number
- CH589498A5 CH589498A5 CH1610475A CH1610475A CH589498A5 CH 589498 A5 CH589498 A5 CH 589498A5 CH 1610475 A CH1610475 A CH 1610475A CH 1610475 A CH1610475 A CH 1610475A CH 589498 A5 CH589498 A5 CH 589498A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/24—Overall form of drilling tools
- B23B2251/241—Cross sections of the diameter of the drill
- B23B2251/242—Cross sections of the diameter of the drill increasing in a direction towards the shank from the tool tip
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742459286 DE2459286A1 (de) | 1974-12-14 | 1974-12-14 | Spiralbohrer, insbesondere zum bohren weicher werkstoffe |
Publications (1)
Publication Number | Publication Date |
---|---|
CH589498A5 true CH589498A5 (ja) | 1977-07-15 |
Family
ID=5933469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1610475A CH589498A5 (ja) | 1974-12-14 | 1975-12-11 |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH589498A5 (ja) |
DE (1) | DE2459286A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2583667A1 (fr) * | 1985-06-19 | 1986-12-26 | Girouard Marc | Foret de percage pour materiaux d'usinage difficile |
DE3805726A1 (de) * | 1988-02-24 | 1989-08-31 | Krauss Helmut | Bohr- bzw. reibwerkzeug |
SE502255C2 (sv) * | 1991-12-16 | 1995-09-25 | Sandvik Ab | Borr med spånkanaler, innefattande en första och en andra spånmatande zon, med olika tvärsnitt |
GB2310622A (en) * | 1996-03-02 | 1997-09-03 | Black & Decker Inc | Drill bit |
DE19841978C2 (de) * | 1998-09-14 | 2000-11-23 | Heller Dinklage Gmbh Geb | Bohrer |
US9199315B2 (en) | 2000-06-02 | 2015-12-01 | Kennametal Inc. | Twist drill and method for producing a twist drill which method includes forming a flute of a twist drill |
DE10027544A1 (de) | 2000-06-02 | 2001-12-13 | Kennametal Inc | Bohrerspitze für einen Spiralbohrer und Verfahren zum Herstellen einer Spannut im Bereich einer Bohrerspitze für einen Spiralbohrer |
-
1974
- 1974-12-14 DE DE19742459286 patent/DE2459286A1/de active Pending
-
1975
- 1975-12-11 CH CH1610475A patent/CH589498A5/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE2459286A1 (de) | 1976-06-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |