发明名称 Combination die and tap
摘要 A thread cutting tool is provided to simultaneously cut opposed concentric screw threads on a connector member. The tool comprises a cylindrical body with radially spaced first and second thread cutting sections and is adapted to cut threads in soft materials to obtain a high precision screw threaded connection.
申请公布号 US5902079(A) 申请公布日期 1999.05.11
申请号 US19970863438 申请日期 1997.05.27
申请人 发明人
分类号 B23G5/04;B23G5/06;(IPC1-7):B23G5/04;B23G5/20 主分类号 B23G5/04
代理机构 代理人
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