JPH02122712U - - Google Patents
Info
- Publication number
- JPH02122712U JPH02122712U JP2999789U JP2999789U JPH02122712U JP H02122712 U JPH02122712 U JP H02122712U JP 2999789 U JP2999789 U JP 2999789U JP 2999789 U JP2999789 U JP 2999789U JP H02122712 U JPH02122712 U JP H02122712U
- Authority
- JP
- Japan
- Prior art keywords
- drill
- core thickness
- ratio
- diameter
- printed circuit
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Drilling Tools (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2999789U JPH02122712U (fr) | 1989-03-15 | 1989-03-15 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2999789U JPH02122712U (fr) | 1989-03-15 | 1989-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02122712U true JPH02122712U (fr) | 1990-10-09 |
Family
ID=31254667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2999789U Pending JPH02122712U (fr) | 1989-03-15 | 1989-03-15 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02122712U (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20130066599A (ko) * | 2010-04-27 | 2013-06-20 | 산드빅 인터렉츄얼 프로퍼티 에이비 | 첨단 재료용 트위스트 드릴 |
JP2014144517A (ja) * | 2013-01-30 | 2014-08-14 | Kyocera Corp | ドリル、工具および被削材の切削方法 |
JPWO2018092729A1 (ja) * | 2016-11-15 | 2019-10-17 | 京セラ株式会社 | 回転工具及びそれを用いた切削加工物の製造方法 |
-
1989
- 1989-03-15 JP JP2999789U patent/JPH02122712U/ja active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20130066599A (ko) * | 2010-04-27 | 2013-06-20 | 산드빅 인터렉츄얼 프로퍼티 에이비 | 첨단 재료용 트위스트 드릴 |
JP2013525129A (ja) * | 2010-04-27 | 2013-06-20 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | 先端材料用のツイストドリル |
US10471521B2 (en) | 2010-04-27 | 2019-11-12 | Sandvik Intellectual Property Ab | Twist drill for advanced materials |
JP2014144517A (ja) * | 2013-01-30 | 2014-08-14 | Kyocera Corp | ドリル、工具および被削材の切削方法 |
JPWO2018092729A1 (ja) * | 2016-11-15 | 2019-10-17 | 京セラ株式会社 | 回転工具及びそれを用いた切削加工物の製造方法 |
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