Drilling tool has shaft section and clamping section that forms longitudinal end of drilling tool, where longitudinal end is adjacent to shaft section

摘要

The drilling tool (1) has a shaft section (10) and a clamping section (20) that forms a longitudinal end (1b) of the drilling tool, where the longitudinal end is adjacent to the shaft section. The clamping section has a radially running main cutting edge and a chip discharge passage that is extended by the clamping section in an axial manner. The chip discharge passage has a closed cross-section.