JPH02117810U - - Google Patents
Info
- Publication number
- JPH02117810U JPH02117810U JP2782489U JP2782489U JPH02117810U JP H02117810 U JPH02117810 U JP H02117810U JP 2782489 U JP2782489 U JP 2782489U JP 2782489 U JP2782489 U JP 2782489U JP H02117810 U JPH02117810 U JP H02117810U
- Authority
- JP
- Japan
- Prior art keywords
- blade
- center
- dent
- utility
- scope
- 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
Landscapes
- Drilling Tools (AREA)
Description
第１図は本考案の側面図、第２図は本考案の正
面図。 １はセンター、２は刃、３はへこみ部刃、４は
先端、５はスクリユー部。
面図。 １はセンター、２は刃、３はへこみ部刃、４は
先端、５はスクリユー部。
Claims (1)
- センター直近の刃にへこみを付けたドリル刃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2782489U JPH02117810U (ja) | 1989-03-10 | 1989-03-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2782489U JPH02117810U (ja) | 1989-03-10 | 1989-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02117810U true JPH02117810U (ja) | 1990-09-20 |
Family
ID=31250657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2782489U Pending JPH02117810U (ja) | 1989-03-10 | 1989-03-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02117810U (ja) |
-
1989
- 1989-03-10 JP JP2782489U patent/JPH02117810U/ja active Pending