JPH0311595U - - Google Patents
Info
- Publication number
- JPH0311595U JPH0311595U JP7084589U JP7084589U JPH0311595U JP H0311595 U JPH0311595 U JP H0311595U JP 7084589 U JP7084589 U JP 7084589U JP 7084589 U JP7084589 U JP 7084589U JP H0311595 U JPH0311595 U JP H0311595U
- Authority
- JP
- Japan
- Prior art keywords
- discharge hole
- drilling tool
- rotary drilling
- cover
- rounded
- 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
- 238000005553 drilling Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims 1
Landscapes
- Details Of Cutting Devices (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7084589U JPH0311595U (en]) | 1989-06-19 | 1989-06-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7084589U JPH0311595U (en]) | 1989-06-19 | 1989-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0311595U true JPH0311595U (en]) | 1991-02-05 |
Family
ID=31607352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7084589U Pending JPH0311595U (en]) | 1989-06-19 | 1989-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0311595U (en]) |
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1989
- 1989-06-19 JP JP7084589U patent/JPH0311595U/ja active Pending