JPH0372992U - - Google Patents
Info
- Publication number
- JPH0372992U JPH0372992U JP13331389U JP13331389U JPH0372992U JP H0372992 U JPH0372992 U JP H0372992U JP 13331389 U JP13331389 U JP 13331389U JP 13331389 U JP13331389 U JP 13331389U JP H0372992 U JPH0372992 U JP H0372992U
- Authority
- JP
- Japan
- Prior art keywords
- tapered
- tapered head
- cemented carbide
- drilling tip
- conical bit
- 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 3
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13331389U JPH0372992U (fr) | 1989-11-16 | 1989-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13331389U JPH0372992U (fr) | 1989-11-16 | 1989-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0372992U true JPH0372992U (fr) | 1991-07-23 |
Family
ID=31680722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13331389U Pending JPH0372992U (fr) | 1989-11-16 | 1989-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0372992U (fr) |
-
1989
- 1989-11-16 JP JP13331389U patent/JPH0372992U/ja active Pending