| 发明名称 |
Drill with hard metal cutting insert of star form |
| 摘要 |
The drill has three hard metal cutting inserts (10) mounted on the front end of a shaft (5) in a star-shaped arrangement. Each cutting insert has two protrusions (18) on its outer sides (16) extending parallel to the shaft length axis.
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| 申请公布号 |
EP1518625(A2) |
申请公布日期 |
2005.03.30 |
| 申请号 |
EP20040022167 |
申请日期 |
2004.09.17 |
| 申请人 |
BERNER GMBH |
发明人 |
RUNGE, ERICH |
| 分类号 |
B23B51/02;B28D1/14;(IPC1-7):B23B51/02 |
主分类号 |
B23B51/02 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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