JPH01174108U - - Google Patents
Info
- Publication number
- JPH01174108U JPH01174108U JP7072088U JP7072088U JPH01174108U JP H01174108 U JPH01174108 U JP H01174108U JP 7072088 U JP7072088 U JP 7072088U JP 7072088 U JP7072088 U JP 7072088U JP H01174108 U JPH01174108 U JP H01174108U
- Authority
- JP
- Japan
- Prior art keywords
- core bit
- air passage
- passage hole
- diamond core
- spindle
- 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
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Drilling And Boring (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7072088U JPH01174108U (en]) | 1988-05-27 | 1988-05-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7072088U JPH01174108U (en]) | 1988-05-27 | 1988-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01174108U true JPH01174108U (en]) | 1989-12-11 |
Family
ID=31295950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7072088U Pending JPH01174108U (en]) | 1988-05-27 | 1988-05-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01174108U (en]) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60262608A (ja) * | 1984-06-12 | 1985-12-26 | 東急建設株式会社 | 無衝撃削孔法 |
| JPS62290504A (ja) * | 1986-06-11 | 1987-12-17 | 日研ツール株式会社 | コンクリ−ト構造物への穿孔方法 |
-
1988
- 1988-05-27 JP JP7072088U patent/JPH01174108U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60262608A (ja) * | 1984-06-12 | 1985-12-26 | 東急建設株式会社 | 無衝撃削孔法 |
| JPS62290504A (ja) * | 1986-06-11 | 1987-12-17 | 日研ツール株式会社 | コンクリ−ト構造物への穿孔方法 |