Drill bit with cutting insert

摘要

The drill tip (6) has a general arched shape with concave (7) and convex (8) flanks. The flanks are connected by a base face (9), by two end edges (10,11), one of which ensures a guide function for the drill, and on the side opposite the base by a cutting part with a cutting edge (12,13) and a point (14). An independent claim is included for a drilling tool.