Invention Grant
- Patent Title: Drill
- Patent Title (中): 钻头
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Application No.: US12808650Application Date: 2008-12-27
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Publication No.: US08651778B2Publication Date: 2014-02-18
- Inventor: Takashi Okumura
- Applicant: Takashi Okumura
- Applicant Address: JP Kyoto
- Assignee: Kyocera Corporation
- Current Assignee: Kyocera Corporation
- Current Assignee Address: JP Kyoto
- Agency: DLA Piper LLP (US)
- Priority: JP2007-337237 20071227
- International Application: PCT/JP2008/073873 WO 20081227
- International Announcement: WO2009/084698 WO 20090709
- Main IPC: B23B51/00
- IPC: B23B51/00 ; B23P15/28
Abstract:
A holder of the present invention has a first insert pocket and a second insert pocket at the tip end thereof. The first insert pocket is located closer to the central axis thereof than the second insert pocket. The axial rake of the first insert pocket is larger than the axial rake of the second insert pocket.
Public/Granted literature
- US20100296884A1 DRILL Public/Granted day:2010-11-25
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