JPH0649660Y2 - コニカルビット - Google Patents
コニカルビットInfo
- Publication number
- JPH0649660Y2 JPH0649660Y2 JP3415389U JP3415389U JPH0649660Y2 JP H0649660 Y2 JPH0649660 Y2 JP H0649660Y2 JP 3415389 U JP3415389 U JP 3415389U JP 3415389 U JP3415389 U JP 3415389U JP H0649660 Y2 JPH0649660 Y2 JP H0649660Y2
- Authority
- JP
- Japan
- Prior art keywords
- tip
- conical
- bit
- groove
- 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.)
- Expired - Lifetime
Links
- 238000005553 drilling Methods 0.000 claims description 15
- 238000005219 brazing Methods 0.000 claims description 8
- 230000004323 axial length Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3415389U JPH0649660Y2 (ja) | 1989-03-24 | 1989-03-24 | コニカルビット |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3415389U JPH0649660Y2 (ja) | 1989-03-24 | 1989-03-24 | コニカルビット |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02125094U JPH02125094U (en]) | 1990-10-15 |
| JPH0649660Y2 true JPH0649660Y2 (ja) | 1994-12-14 |
Family
ID=31538380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3415389U Expired - Lifetime JPH0649660Y2 (ja) | 1989-03-24 | 1989-03-24 | コニカルビット |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0649660Y2 (en]) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5769150B2 (ja) * | 2011-10-04 | 2015-08-26 | 大成建設株式会社 | 掘削機 |
-
1989
- 1989-03-24 JP JP3415389U patent/JPH0649660Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02125094U (en]) | 1990-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0297510U (en]) | ||
| JPS6446112U (en]) | ||
| JPH0649660Y2 (ja) | コニカルビット | |
| JPS63166404U (en]) | ||
| JPH01131512U (en]) | ||
| JPS5938969Y2 (ja) | 穴あけ工具 | |
| EP0194245B1 (en) | Drill for generating of holes in a work piece | |
| JPH02145923U (en]) | ||
| JPH04150Y2 (en]) | ||
| JPH053587Y2 (en]) | ||
| JP2595029Y2 (ja) | さく孔用リングビツト | |
| JP2561041Y2 (ja) | ドリル | |
| JPS6434111U (en]) | ||
| JPS6158253U (en]) | ||
| JPH0750473Y2 (ja) | コニカルビット | |
| JPH0440821Y2 (en]) | ||
| JPS6332226Y2 (en]) | ||
| JPH0549891U (ja) | ケーシングヘッド用切削装置 | |
| JPS62162009U (en]) | ||
| JPH0161291U (en]) | ||
| JPH0368714U (en]) | ||
| JPH0386188U (en]) | ||
| JPS63166403U (en]) | ||
| JPH04343608A (ja) | バニシングドリル | |
| JPH05337715A (ja) | ホールカッターの刃先構造 |