JPH02136190U - - Google Patents
Info
- Publication number
- JPH02136190U JPH02136190U JP4362489U JP4362489U JPH02136190U JP H02136190 U JPH02136190 U JP H02136190U JP 4362489 U JP4362489 U JP 4362489U JP 4362489 U JP4362489 U JP 4362489U JP H02136190 U JPH02136190 U JP H02136190U
- Authority
- JP
- Japan
- Prior art keywords
- holder
- hole
- bit
- cutter
- shank portion
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims description 2
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989043624U JPH0626621Y2 (ja) | 1989-04-13 | 1989-04-13 | ケーシングビットおよびこれを組込んだ掘削カッタ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989043624U JPH0626621Y2 (ja) | 1989-04-13 | 1989-04-13 | ケーシングビットおよびこれを組込んだ掘削カッタ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02136190U true JPH02136190U (no) | 1990-11-13 |
| JPH0626621Y2 JPH0626621Y2 (ja) | 1994-07-20 |
Family
ID=31556195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989043624U Expired - Lifetime JPH0626621Y2 (ja) | 1989-04-13 | 1989-04-13 | ケーシングビットおよびこれを組込んだ掘削カッタ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0626621Y2 (no) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62176286U (no) * | 1986-04-25 | 1987-11-09 | ||
| JPS6393987A (ja) * | 1986-10-08 | 1988-04-25 | 三菱製鋼株式会社 | ア−スオ−ガケ−シング用掘削歯 |
-
1989
- 1989-04-13 JP JP1989043624U patent/JPH0626621Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62176286U (no) * | 1986-04-25 | 1987-11-09 | ||
| JPS6393987A (ja) * | 1986-10-08 | 1988-04-25 | 三菱製鋼株式会社 | ア−スオ−ガケ−シング用掘削歯 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0626621Y2 (ja) | 1994-07-20 |