JPH0536564Y2 - - Google Patents
Info
- Publication number
- JPH0536564Y2 JPH0536564Y2 JP11191487U JP11191487U JPH0536564Y2 JP H0536564 Y2 JPH0536564 Y2 JP H0536564Y2 JP 11191487 U JP11191487 U JP 11191487U JP 11191487 U JP11191487 U JP 11191487U JP H0536564 Y2 JPH0536564 Y2 JP H0536564Y2
- Authority
- JP
- Japan
- Prior art keywords
- drill
- stepped
- diameter portion
- groove
- small diameter
- 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.)
- Expired - Lifetime
Links
- 238000010586 diagram Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
Landscapes
- Drilling Tools (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11191487U JPH0536564Y2 (US06649357-20031118-C00005.png) | 1987-07-23 | 1987-07-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11191487U JPH0536564Y2 (US06649357-20031118-C00005.png) | 1987-07-23 | 1987-07-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6420211U JPS6420211U (US06649357-20031118-C00005.png) | 1989-02-01 |
| JPH0536564Y2 true JPH0536564Y2 (US06649357-20031118-C00005.png) | 1993-09-16 |
Family
ID=31350382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11191487U Expired - Lifetime JPH0536564Y2 (US06649357-20031118-C00005.png) | 1987-07-23 | 1987-07-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0536564Y2 (US06649357-20031118-C00005.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0621604Y2 (ja) * | 1987-09-18 | 1994-06-08 | 三菱マテリアル株式会社 | 段付きドリル |
-
1987
- 1987-07-23 JP JP11191487U patent/JPH0536564Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6420211U (US06649357-20031118-C00005.png) | 1989-02-01 |
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