发明名称 DRILL BIT WITH AN EXCHANGEABLE CUTTING PORTION
摘要 A drill bit which is rotatable about a drilling axis is disclosed. The drill bit has a cutting section having one or more cutting segments and a first plug-connecting element and a drill shaft section having a second plug-connecting element. The first plug-connecting element and the second plug-connecting element form a plug connection and the first plug-connecting element and the second plug-connecting element are connectable by a pin connection.
申请公布号 US2015016909(A1) 申请公布日期 2015.01.15
申请号 US201214367784 申请日期 2012.12.21
申请人 Hilti Aktiengesellschaft 发明人 Hoop Matthaeus;Weber Christoph;Ebert Joerg
分类号 B23B51/04 主分类号 B23B51/04
代理机构 代理人
主权项
地址 Schaan LI