JPH04150Y2 - - Google Patents
Info
- Publication number
- JPH04150Y2 JPH04150Y2 JP18760886U JP18760886U JPH04150Y2 JP H04150 Y2 JPH04150 Y2 JP H04150Y2 JP 18760886 U JP18760886 U JP 18760886U JP 18760886 U JP18760886 U JP 18760886U JP H04150 Y2 JPH04150 Y2 JP H04150Y2
- Authority
- JP
- Japan
- Prior art keywords
- chip
- circumferential side
- tip
- drilling bit
- facing
- 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
Links
- 238000005553 drilling Methods 0.000 claims description 19
- 229910000679 solder Inorganic materials 0.000 description 7
- 238000005219 brazing Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18760886U JPH04150Y2 (US20100268047A1-20101021-C00003.png) | 1986-12-05 | 1986-12-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18760886U JPH04150Y2 (US20100268047A1-20101021-C00003.png) | 1986-12-05 | 1986-12-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6395795U JPS6395795U (US20100268047A1-20101021-C00003.png) | 1988-06-21 |
| JPH04150Y2 true JPH04150Y2 (US20100268047A1-20101021-C00003.png) | 1992-01-06 |
Family
ID=31138223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18760886U Expired JPH04150Y2 (US20100268047A1-20101021-C00003.png) | 1986-12-05 | 1986-12-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04150Y2 (US20100268047A1-20101021-C00003.png) |
-
1986
- 1986-12-05 JP JP18760886U patent/JPH04150Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6395795U (US20100268047A1-20101021-C00003.png) | 1988-06-21 |
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