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专利权人:
SURGIBIT IP HOLDINGS PTY LIMITED
发明人:
申请号:
EP11182409.0
公开号:
EP2399531B1
申请日:
2003.08.07
申请国别(地区):
EP
年份:
2016
代理人:
摘要:
A drill bit comprising: a shaft (103) which has a pyramidal shaped end (105) defining a drill tip with a plurality of edges defining the pyramidal shape; and one or more recesses (107) for directing away debris produced whilst drilling, the or each recess (107) having a first portion (109) extending along the shaft (103) and a second portion (111) which extends along the drill tip, wherein the second portion (111) of the or each recess (107) extends along an edge (113) of the drill tip.
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中国工程科技知识中心
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http://www.ckcest.cn/home/

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