发明名称 |
Hollow drill for producing break-through, has fitted cutting segments, where circumference is occupied between certain percentage and quantity of cutting segments is determined |
摘要 |
<p>The hollow drill (1) has fitted cutting segments (2), where circumference is occupied between 40 and 80 percent, particularly between 50 and 70 percent. The quantity of cutting segments is determined, where diameters of the hollow drill are measured in millimeter. The cutting segments are sintered diamond segments.</p> |
申请公布号 |
AT504493(B1) |
申请公布日期 |
2008.06.15 |
申请号 |
AT20070000580 |
申请日期 |
2007.04.16 |
申请人 |
TYROLIT SCHLEIFMITTELWERKE SWAROVSKI KG |
发明人 |
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分类号 |
B28D1/14;B23B51/04 |
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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