JPH03122191U - - Google Patents
Info
- Publication number
- JPH03122191U JPH03122191U JP2978090U JP2978090U JPH03122191U JP H03122191 U JPH03122191 U JP H03122191U JP 2978090 U JP2978090 U JP 2978090U JP 2978090 U JP2978090 U JP 2978090U JP H03122191 U JPH03122191 U JP H03122191U
- Authority
- JP
- Japan
- Prior art keywords
- bit
- bit body
- blades fixed
- tip
- tip surface
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2978090U JPH03122191U (ko) | 1990-03-23 | 1990-03-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2978090U JPH03122191U (ko) | 1990-03-23 | 1990-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03122191U true JPH03122191U (ko) | 1991-12-13 |
Family
ID=31532530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2978090U Pending JPH03122191U (ko) | 1990-03-23 | 1990-03-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03122191U (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020528504A (ja) * | 2017-07-20 | 2020-09-24 | ミンコン インターナショナル リミテッドＭｉｎｃｏｎ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｌｉｍｉｔｅｄ | 脱着式ビットヘッド付きドリルビット |
-
1990
- 1990-03-23 JP JP2978090U patent/JPH03122191U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020528504A (ja) * | 2017-07-20 | 2020-09-24 | ミンコン インターナショナル リミテッドＭｉｎｃｏｎ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｌｉｍｉｔｅｄ | 脱着式ビットヘッド付きドリルビット |