发明名称 Coolant drill head
摘要 Coolant hole drills are very costly and by that are times not used as often as they could be. By utilizing a coolant drill head, the material could be cobalt or carbide, the coolant drill costs would be reduced substantially. The problem users encounter with replaceable drill heads is strength and concentricity. Here is a system that maintains both strength and concentricity.
申请公布号 US2004074674(A1) 申请公布日期 2004.04.22
申请号 US20030379110 申请日期 2003.06.10
申请人 THOMAS GLEN ST. 发明人 THOMAS GLEN ST.
分类号 B23B51/02;B23B51/06;B23Q1/00;(IPC1-7):E21B10/60 主分类号 B23B51/02
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