发明名称 SPUR POINT DRILL INSERT
摘要 A cutting tool insert having a specialized spur point geometry at the center of the insert. The insert comprises a spur point cutting portion and a blade cutting portion wherein the spur point provides stability by providing a spot and allowing a flexible workpiece to partially spring back when the spur breaks through. The spur point insert facilitates the cutting of relatively thinner workpieces and workpieces requiring the tool to have a longer reach to the hole, while minimizing the burr resulting from the drilling operation.
申请公布号 EP1551585(A4) 申请公布日期 2007.09.19
申请号 EP20030739214 申请日期 2003.06.19
申请人 ALLIED MACHINE & ENGINEERING CORP. 发明人 MAST, WENDELL, E.;KEIM, BRIAN
分类号 B23B51/00 主分类号 B23B51/00
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