Contact blade for a connector part forming a socket, formed from a sheet metal strip bent in a U-shape, the U-limbs of which form two contact arms (31, 32) which are opposite one another, which are designed to converge in a central section (33, 34) of their longitudinal extensions, and which are each subdivided into two contact arms (41, 42, 43, 44) which are parallel to one another and lie next to one another by means of incisions (35, 36) which are guided over the largest part of their longitudinal extensions, characterised in in that, in the region of greatest convergence of the contact arms (31, 32), a contact incision (45, 46, 47, 48) is formed in each of the contact webs (41, 42, 43, 44) in the longitudinal direction thereof, which contact incision (45, 46, 47, 48) is in each case shorter than the incision (35, 36) running parallel thereto in the respective contact arm (31, 32), as a result of which each contact web (41, 42, 43, 44) forms two contact runners (51 to 58) in sections on both sides of its contact incision (45, 46, 47, 48), in that the contact incisions (45, 46, 47, 48) each have a transverse bulge (81, 82) towards the centre of the same contact arm (31, 32) in each case, as a result of which the contact runners (52, 54, 55, 58), which are outer on each contact arm (31, 32), each have, in addition to a bulge (81, 82), each forming a widened portion (521, 541), in that the recesses (35, 36) each form two bulges (83, 84), whereby the recesses (35, 36) and the contact recesses (45, 46, 46, 48) each run parallel to one another, and in that four contact points (71, 72, 73, 74) are arranged on each contact arm (31, 32) in each case, two contact points (71, 74, 73, 74) being arranged next to one another in a longitudinal direction of the contact arm (31, 32); 72, 73) are arranged next to one another in a line (A, B), in each case one of the contact points (74, 72) being arranged on a widened section (541, 521) of the outer contact runner (54, 52) of one contact web (42, 44) and the other contact point (71, 73) being arranged on the inner contact runner (51, 53) of the respective other contact web (44, 42) in the case of each line (A, B). formed from a sheet metal strip bent in a U-shape, the U-limbs of which form two contact arms (31, 32) which are opposite one another, which are designed to converge in a central section (33, 34) of their longitudinal extensions, and which are each subdivided into two contact arms (41, 42, 43, 44) which are parallel to one another and lie next to one another by means of incisions (35, 36) which are guided over the largest part of their longitudinal extensions, characterised in in that, in the region of greatest convergence of the contact arms (31, 32), a contact incision (45, 46, 47, 48) is formed in each of the contact webs (41, 42, 43, 44) in the longitudinal direction thereof, which contact incision (45, 46, 47, 48) is in each case shorter than the incision (35, 36) running parallel thereto in the respective contact arm (31, 32), as a result of which each contact web (41, 42, 43, 44) forms two contact runners (51 to 58) in sections on both sides of its contact incision (45, 46, 47, 48), in that the contact incisions (45, 46, 47, 48) each have a transverse bulge (81, 82) towards the centre of the same contact arm (31, 32) in each case, as a result of which the contact runners (52, 54, 55, 58), which are outer on each contact arm (31, 32), each have, in addition to a bulge (81, 82), each forming a widened portion (521, 541), in that the recesses (35, 36) each form two bulges (83, 84), whereby the recesses (35, 36) and the contact recesses (45, 46, 46, 48) each run parallel to one another, and in that four contact points (71, 72, 73, 74) are arranged on each contact arm (31, 32) in each case, two contact points (71, 74, 73, 74) being arranged next to one another in a longitudinal direction of the contact arm (31, 32); 72, 73) are arranged next to one another in a line (A, B), in each case one of the contact points (74, 72) being arranged on a widened section (541, 521) of the outer contact runner (54, 52) of one contact web (42, 44) and the other contact point (71, 73) being arranged on the inner contact runner (51, 53) of the respective other contact web (44, 42) in the case of each line (A, B).