发明名称 Drill bit for drilling along an arcuate path
摘要 A drill bit for drilling holes around the corner of a workpiece is provided with a single rounded continuous cutting edge with radiused upper and lower corners to permit free rotation of the cutting head as it is urged along an arcuate path. The bit is of a unique two piece construction permitting selective materials to be utilized in the shank an cutting head portions.
申请公布号 US5145018(A) 申请公布日期 1992.09.08
申请号 US19910739884 申请日期 1991.08.02
申请人 VERMONT AMERICAN CORPORATION 发明人 SCHIMKE, THOMAS O.;MCCORD, JR., WILFRED M.
分类号 B27G15/00 主分类号 B27G15/00
代理机构 代理人
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