Bore- og/eller mejselværktøj

摘要

The boring tool is produced by cold rolling and has at least three swarf flutes(2), and their helix angle in the area of the run-out in the drilling head(6) corresponds to, or differs from, the helix angle of the flutes in the shank. A hard metal insert(8) is formed in one piece in the drilling head and has a number of cutting edges corresponding to the number of swarf flutes.