发明名称 Device to extract broken fasteners embedded in a workpiece
摘要 A device for the extraction of broken fastener comprises a left handed cutting tool juxtaposed to a left handed drill bit that is surrounded by a socket. In a specific embodiment the socket has longitudinal slits, a ribbed inner surface, and a threaded outside surface adapted to be received by a collar.
申请公布号 US6868756(B2) 申请公布日期 2005.03.22
申请号 US20030365334 申请日期 2003.02.12
申请人 COMBINED PRODUCTS INCORPORATED 发明人 KOZAK IRA M.
分类号 B25B27/18;(IPC1-7):B24B13/48;B25B23/10 主分类号 B25B27/18
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