JPH0452011Y2 - - Google Patents
Info
- Publication number
- JPH0452011Y2 JPH0452011Y2 JP351888U JP351888U JPH0452011Y2 JP H0452011 Y2 JPH0452011 Y2 JP H0452011Y2 JP 351888 U JP351888 U JP 351888U JP 351888 U JP351888 U JP 351888U JP H0452011 Y2 JPH0452011 Y2 JP H0452011Y2
- Authority
- JP
- Japan
- Prior art keywords
- core bit
- shank
- cutting edge
- groove
- grooves
- 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
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000005553 drilling Methods 0.000 description 12
- 229910003460 diamond Inorganic materials 0.000 description 8
- 239000010432 diamond Substances 0.000 description 8
- 230000035939 shock Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Drilling Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Drilling And Boring (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP351888U JPH0452011Y2 (US06168776-20010102-C00041.png) | 1988-01-14 | 1988-01-14 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP351888U JPH0452011Y2 (US06168776-20010102-C00041.png) | 1988-01-14 | 1988-01-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01108704U JPH01108704U (US06168776-20010102-C00041.png) | 1989-07-24 |
JPH0452011Y2 true JPH0452011Y2 (US06168776-20010102-C00041.png) | 1992-12-08 |
Family
ID=31205220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP351888U Expired JPH0452011Y2 (US06168776-20010102-C00041.png) | 1988-01-14 | 1988-01-14 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0452011Y2 (US06168776-20010102-C00041.png) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5184282B2 (ja) * | 2008-09-29 | 2013-04-17 | 株式会社コンセック | コアビット |
-
1988
- 1988-01-14 JP JP351888U patent/JPH0452011Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPH01108704U (US06168776-20010102-C00041.png) | 1989-07-24 |
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