JPH0529273Y2 - - Google Patents
Info
- Publication number
- JPH0529273Y2 JPH0529273Y2 JP1344789U JP1344789U JPH0529273Y2 JP H0529273 Y2 JPH0529273 Y2 JP H0529273Y2 JP 1344789 U JP1344789 U JP 1344789U JP 1344789 U JP1344789 U JP 1344789U JP H0529273 Y2 JPH0529273 Y2 JP H0529273Y2
- Authority
- JP
- Japan
- Prior art keywords
- bit
- wing
- base
- reamer
- tip
- 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 9
- 239000000843 powder Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 239000010953 base metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1344789U JPH0529273Y2 (US06633600-20031014-M00021.png) | 1989-02-07 | 1989-02-07 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1344789U JPH0529273Y2 (US06633600-20031014-M00021.png) | 1989-02-07 | 1989-02-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02106090U JPH02106090U (US06633600-20031014-M00021.png) | 1990-08-23 |
JPH0529273Y2 true JPH0529273Y2 (US06633600-20031014-M00021.png) | 1993-07-27 |
Family
ID=31223761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1344789U Expired - Lifetime JPH0529273Y2 (US06633600-20031014-M00021.png) | 1989-02-07 | 1989-02-07 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0529273Y2 (US06633600-20031014-M00021.png) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6777376B2 (ja) * | 2015-03-25 | 2020-10-28 | 五洋建設株式会社 | 掘削機および回転ビット |
-
1989
- 1989-02-07 JP JP1344789U patent/JPH0529273Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH02106090U (US06633600-20031014-M00021.png) | 1990-08-23 |
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