| 发明名称 |
Thread cutting twist drill and production method thereof |
| 摘要 |
<p>A drill bit has a shaft (2) and a tip (9). The shaft (2) translates through a centre section (6) to an octagonal clamping base (7). The extended centre section (6) is esp. heat treated to give it greater bending elasticity than the base (7) and shaft (2).</p> |
| 申请公布号 |
EP1454696(B1) |
申请公布日期 |
2006.10.18 |
| 申请号 |
EP20030024818 |
申请日期 |
2003.10.31 |
| 申请人 |
GIESS & QUANZ GMBH & CO. KG |
发明人 |
QUANZ, REINER |
| 分类号 |
B23G5/20;B23B31/00;B23B51/02 |
主分类号 |
B23G5/20 |
| 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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