发明名称 DRILLING TOOL
摘要 <p>A drilling tool includes a tool shank disposed about a center longitudinal axis. The tool shank having a holding region structured to be chucked in the chuck of a machine tool and an active region extending from the holding region. The drilling tool further includes at least two partial cutting edges formed on an end face of the active region and running at right angles to the center longitudinal axis and form a drill main cutting edge and a clearance formed in the end face between the partial cutting edges. The clearance being recessed axially along the center longitudinal axis toward the tool shank.</p>
申请公布号 KR20120066625(A) 申请公布日期 2012.06.22
申请号 KR20127003959 申请日期 2010.08.10
申请人 KENNAMETAL INC. 发明人 HOBOHM UWE
分类号 B23B51/02 主分类号 B23B51/02
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