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专利名称：CORE BIT
发明人：AGEHARA, KIGEN,YAMASHITA,
MICHIO,MURAKAMI, NAOHIDE
申请号：EP03797553申请日：20030908公开号：EP1541267A4公开日：20100602
摘要：In a core bit formed with a drill portion in a cylindrical shape formed with aboring blade on one end side thereof and a mounting portion in a cylindrical shapemounted to a chuck portion of a concrete drill on other end side of the drill portion,formed with an engaging portion capable of being engaged with an engaging portion ona side of the chuck portion at an outer peripheral face of the mounting portion fortransmitting rotation of a side of the concrete drill via the engaging member, the outerperipheral face of the mounting portion on a side of the boring blade of the engagingmember is formed with a flange portion in a shape of a flange having a diameter largerthan an outer diameter of the engaging member.
申请人：MAX CO., LTD.
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