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

摘要

A drilling/chamfering tool comprises a base body (2) including a drill adaptor and a cutting insert (5) as a chamfering tool, as well as a drill (3) with a diameter (D), held in a longitudinally variable manner in the drill adaptor and having chip flutes (8) with a helix angle of maximally 25° relative to the axis (A) of the drill (3)r a coolant channel (10) as well as a bearing face (7), which the cutting insert (5) abuts along a bearing length (AL). Fig. 1a