Abstract: The present invention relates to a contact member (1) with a bifurcated part (2) which is formed with two legs (3a, 3b) and an intermediate slit (4) and is intended, on being transversely thrust against an insulated conductor, to penetrate the insulation and make electrical contact with the conductor. The bifurcated part (2) is stamped at the contact region (5) such that the material in the legs (3a, 3b) parallel to the plastically deformed towards the slit so that the latter is given correct width and tolerance in relation to the conductor. In accordance with the invention, the material in the legs is deformed (6a, 6b) so that the side surfaces of the slit are mutually parallel and have greater height in the thickness direction of the member (1) than the rest of the member.The invention also relates to a tool containing two counter-acting punches (10) for stamping out a contact member (1) in accordance with the invention.