JPS542711B2 - - Google Patents
Info
- Publication number
- JPS542711B2 JPS542711B2 JP3314476A JP3314476A JPS542711B2 JP S542711 B2 JPS542711 B2 JP S542711B2 JP 3314476 A JP3314476 A JP 3314476A JP 3314476 A JP3314476 A JP 3314476A JP S542711 B2 JPS542711 B2 JP S542711B2
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/44—Margins, i.e. the narrow portion of the land which is not cut away to provide clearance on the circumferential surface
- B23B2251/443—Double margin drills
Landscapes
- Drilling Tools (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3314476A JPS52116980A (en) | 1976-03-26 | 1976-03-26 | Tip breaker drill and method of manufacturing same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3314476A JPS52116980A (en) | 1976-03-26 | 1976-03-26 | Tip breaker drill and method of manufacturing same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52116980A JPS52116980A (en) | 1977-09-30 |
JPS542711B2 true JPS542711B2 (de) | 1979-02-10 |
Family
ID=12378383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3314476A Granted JPS52116980A (en) | 1976-03-26 | 1976-03-26 | Tip breaker drill and method of manufacturing same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52116980A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016101664A (ja) * | 2014-11-27 | 2016-06-02 | 三星ダイヤモンド工業株式会社 | 基板加工用ツールの製造方法及び基板加工用ツール |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10015203A1 (de) * | 2000-03-27 | 2001-10-04 | Hilti Ag | Wendelbohrer |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3667857A (en) * | 1970-10-30 | 1972-06-06 | Nat Twist Drill & Tool Co | Combined drill and reamer construction |
-
1976
- 1976-03-26 JP JP3314476A patent/JPS52116980A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3667857A (en) * | 1970-10-30 | 1972-06-06 | Nat Twist Drill & Tool Co | Combined drill and reamer construction |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016101664A (ja) * | 2014-11-27 | 2016-06-02 | 三星ダイヤモンド工業株式会社 | 基板加工用ツールの製造方法及び基板加工用ツール |
Also Published As
Publication number | Publication date |
---|---|
JPS52116980A (en) | 1977-09-30 |