JPS628973Y2 - - Google Patents
Info
- Publication number
- JPS628973Y2 JPS628973Y2 JP17557581U JP17557581U JPS628973Y2 JP S628973 Y2 JPS628973 Y2 JP S628973Y2 JP 17557581 U JP17557581 U JP 17557581U JP 17557581 U JP17557581 U JP 17557581U JP S628973 Y2 JPS628973 Y2 JP S628973Y2
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- curved portion
- convex curved
- concave curved
- tool body
- 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.)
- Expired
Links
- 238000005553 drilling Methods 0.000 claims description 12
- 238000005219 brazing Methods 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 239000010730 cutting oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Drilling Tools (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17557581U JPS5880114U (ja) | 1981-11-26 | 1981-11-26 | 二枚刃の穴明け工具 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17557581U JPS5880114U (ja) | 1981-11-26 | 1981-11-26 | 二枚刃の穴明け工具 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5880114U JPS5880114U (ja) | 1983-05-31 |
| JPS628973Y2 true JPS628973Y2 (instruction) | 1987-03-02 |
Family
ID=29967983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17557581U Granted JPS5880114U (ja) | 1981-11-26 | 1981-11-26 | 二枚刃の穴明け工具 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5880114U (instruction) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021151681A (ja) * | 2020-03-24 | 2021-09-30 | 三菱マテリアル株式会社 | ドリル |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008062369A (ja) * | 2006-09-11 | 2008-03-21 | Tungaloy Corp | 穴あけ工具に取り付けられるチップの製造方法、並びに穴あけ工具の製造方法および穴あけ工具 |
| JP6127341B2 (ja) * | 2013-03-01 | 2017-05-17 | 住友電工ハードメタル株式会社 | ３枚刃ツイストドリル |
| JP6519971B2 (ja) * | 2014-01-16 | 2019-05-29 | 三菱日立ツール株式会社 | ドリル |
-
1981
- 1981-11-26 JP JP17557581U patent/JPS5880114U/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021151681A (ja) * | 2020-03-24 | 2021-09-30 | 三菱マテリアル株式会社 | ドリル |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5880114U (ja) | 1983-05-31 |
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