VORRICHTUNG ZUR HERSTELLUNG EINER HINTERSCHNEIDUNG IN EINEM BOHRLOCH
摘要
A device for forming an undercut in a drill hole includes a drilling tool having a shank receivable in a chuck of a drilling machine and having a convex collar supported on a corresponding concave bearing surface of a bearing element of the device. The bearing element has a bore that communicates the bearing surface with an opening which communicates with a source of a lubricant liquid. The collar has at least one groove for conducting the liquid into the drill hole to the drill bit head of the tool.
申请公布号
DE3924044(A1)
申请公布日期
1991.01.24
申请号
DE19893924044
申请日期
1989.07.21
申请人
FISCHER-WERKE ARTUR FISCHER GMBH & CO KG, 7244 WALDACHTAL, DE
发明人
FISCHER, ARTUR, PROF. DR.H.C., 7244 WALDACHTAL, DE