发明授权
- 专利标题: Semi-circular thread tap
- 专利标题(中): 半圆形丝锥
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申请号: US267429申请日: 1981-05-26
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公开(公告)号: US4316683A公开(公告)日: 1982-02-23
- 发明人: Lawrence A. Schott
- 申请人: Lawrence A. Schott
- 申请人地址: MI Redford
- 专利权人: Schott; Roger A.
- 当前专利权人: Schott; Roger A.
- 当前专利权人地址: MI Redford
- 主分类号: B23G5/20
- IPC分类号: B23G5/20 ; B23B51/00 ; B21K21/00 ; B23G5/06
摘要:
A tap for cutting threads in a hole which comprises a semi-circular tap body with threads cut in the circular surface extending to a diametrical surface. Modified embodiments include a rake angle at the cutting ends of the tap threads and a drill point to allow the device to serve as a drill and tap.
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