Metal cutting insert for drilling tool and drilling tool

A metal cutting bit insert (100, 400) for a drilling tool, comprising: opposing top and bottom surfaces (101, 401, 102, 402), an axis of symmetry of the cutting bit insert extending between the top and bottom surfaces, and peripheral side surfaces (103, 403) extending between the top and bottom surfaces, where the top surface (101, 401) comprises a rake face (104, 404) and the side surfaces (103, 403) are spaced apart from each other. The gap surface (105, 403) comprises a gap surface (105, 405). The metal cutting bit insert further includes at least one stepped cutting edge (106, 406) configured to cut continuous chips along the at least one stepped cutting edge, where the at least one stepped cutting edge is formed between a rake face (104, 404) of the top surface (101, 401) and an adjoining clearance face (105, 406) of the side surface (103, 403). 405), where the at least one stepped cutting edge comprises, in a top view facing the top surface of the metal cutting insert, a step formed by a transition edge