JPH0519434Y2 - - Google Patents
Info
- Publication number
- JPH0519434Y2 JPH0519434Y2 JP11312988U JP11312988U JPH0519434Y2 JP H0519434 Y2 JPH0519434 Y2 JP H0519434Y2 JP 11312988 U JP11312988 U JP 11312988U JP 11312988 U JP11312988 U JP 11312988U JP H0519434 Y2 JPH0519434 Y2 JP H0519434Y2
- Authority
- JP
- Japan
- Prior art keywords
- receiving recess
- bit body
- upright
- holder block
- 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.)
- Expired - Lifetime
Links
- 238000005553 drilling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11312988U JPH0519434Y2 (no) | 1988-08-29 | 1988-08-29 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11312988U JPH0519434Y2 (no) | 1988-08-29 | 1988-08-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0233891U JPH0233891U (no) | 1990-03-02 |
JPH0519434Y2 true JPH0519434Y2 (no) | 1993-05-21 |
Family
ID=31352695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11312988U Expired - Lifetime JPH0519434Y2 (no) | 1988-08-29 | 1988-08-29 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0519434Y2 (no) |
-
1988
- 1988-08-29 JP JP11312988U patent/JPH0519434Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0233891U (no) | 1990-03-02 |
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