JPS6229211U - - Google Patents
Info
- Publication number
- JPS6229211U JPS6229211U JP12114685U JP12114685U JPS6229211U JP S6229211 U JPS6229211 U JP S6229211U JP 12114685 U JP12114685 U JP 12114685U JP 12114685 U JP12114685 U JP 12114685U JP S6229211 U JPS6229211 U JP S6229211U
- Authority
- JP
- Japan
- Prior art keywords
- diameter hole
- tip
- small diameter
- large diameter
- drilling
- 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 2
Landscapes
- Drilling Tools (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12114685U JPS6229211U (en, 2012) | 1985-08-07 | 1985-08-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12114685U JPS6229211U (en, 2012) | 1985-08-07 | 1985-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6229211U true JPS6229211U (en, 2012) | 1987-02-21 |
Family
ID=31010136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12114685U Pending JPS6229211U (en, 2012) | 1985-08-07 | 1985-08-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6229211U (en, 2012) |
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1985
- 1985-08-07 JP JP12114685U patent/JPS6229211U/ja active Pending