发明名称 |
HOLLOW DRILLING TOOL |
摘要 |
A hollow drilling tool is made up of an axially extending tubular carrier part, a cutting body at one end of the carrier part, and guide elements located in the axial direction of the carrier part between the cutting body and the carrier part. The radially outer surface of each guide element is in alignment in the axial direction of the carrier part with the radially outer surface of the cutting body. The guide elements guide the hollow drilling tool in a borehole formed by the cutting body.
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申请公布号 |
US5069584(A) |
申请公布日期 |
1991.12.03 |
申请号 |
US19900468375 |
申请日期 |
1990.01.22 |
申请人 |
HILTI AKTIENGESELLSCHAFT |
发明人 |
OBERMEIER, JOSEF;MAGYARI, EUGEN;RITT, WALTER;WOHLWEND, ERNST;GASSMANN, HORST-DETLEF;CAVADA, PETER |
分类号 |
B23B51/04;B24D7/18;B24D99/00;B28D1/04;E21B10/48 |
主分类号 |
B23B51/04 |
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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