JPH0412583U - - Google Patents
Info
- Publication number
- JPH0412583U JPH0412583U JP5110490U JP5110490U JPH0412583U JP H0412583 U JPH0412583 U JP H0412583U JP 5110490 U JP5110490 U JP 5110490U JP 5110490 U JP5110490 U JP 5110490U JP H0412583 U JPH0412583 U JP H0412583U
- Authority
- JP
- Japan
- Prior art keywords
- bit
- cutting
- cutting edge
- annular head
- tip
- 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 2
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5110490U JPH0412583U (xx) | 1990-05-16 | 1990-05-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5110490U JPH0412583U (xx) | 1990-05-16 | 1990-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0412583U true JPH0412583U (xx) | 1992-01-31 |
Family
ID=31570240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5110490U Pending JPH0412583U (xx) | 1990-05-16 | 1990-05-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0412583U (xx) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130572A (ja) * | 1974-09-07 | 1976-03-15 | Tone Boring Co | Chokogokinsuikannoseizohoho oyobi sonosochi |
-
1990
- 1990-05-16 JP JP5110490U patent/JPH0412583U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130572A (ja) * | 1974-09-07 | 1976-03-15 | Tone Boring Co | Chokogokinsuikannoseizohoho oyobi sonosochi |