DRILL FOR A DRILLING/CHAMFERING TOOL AND DRILLING/CHAMFERING TOOL

摘要

A drilling/chamfering tool comprises a base body (2) including a drill adaptorand acutting insert (5) as a chamfering tool, as well as a drill (3) with adiameter (D), held in alongitudinally variable manner in the drill adaptor and having chip flutes (8)with a helixangle of maximally 25° relative to the axis (A) of the drill (3), acoolant channel (10) aswell as a bearing face (7), which the cutting insert (5) abuts along a bearinglength (AL).