发明名称 |
DRILLING TOOL. |
摘要 |
The present invention relates to a drilling tool comprising an insertion end (1) and a carrying piece (2) equipped with drilling blades (8). The carrying piece (2) and insertion end (1) are reciprocally attached through a threaded connection. To prevent an accidental detachment of both pieces, said pieces are secured by a spring ring (7) having a radial spring effect.
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申请公布号 |
MX9504445(A) |
申请公布日期 |
1997.01.31 |
申请号 |
MX19950004445 |
申请日期 |
1995.10.20 |
申请人 |
HILTI AKTIENGESELLESCHAFT |
发明人 |
WERNER LAUERMAN;MARKUS GEIGER;ROLF SPANGENBERG |
分类号 |
B23B51/00;B23B51/04;B23B51/12;B28D1/14;(IPC1-7):B23B29/00 |
主分类号 |
B23B51/00 |
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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