| 发明名称 |
DRILLING EQUIPMENT FOR MAKING HOLES HAVING BACK-CUT |
| 摘要 |
<p>Drilling device for producing drilled holes with recesses, having a drill bit (2) which has a cross-sectional widened portion and an axial through-bore (16) for drawing off the drillings. The suction cap (3) is held between a flange formed on a drill-bit holder (1) and a flange formed on the shank (13) and consists essentially of a tubular section having a suction nozzle. <IMAGE></p> |
| 申请公布号 |
HUT54554(A) |
申请公布日期 |
1991.03.28 |
| 申请号 |
HU19890005257 |
申请日期 |
1989.10.09 |
| 申请人 |
FISCHERWERKE ARTUR FISCHER GMBH. UND CO. KG,DE |
发明人 |
FISCHER,ARTUR,DE |
| 分类号 |
B28D1/14;B23B41/06;B23B51/00;B23B51/06;B23Q1/00;B23Q11/00;B28D7/02;(IPC1-7):B28D1/14 |
主分类号 |
B28D1/14 |
| 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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