The medical tubular shank instrument (10) has a straight elongated tube (12), where a rod-shaped force transmission element (22) is provided. The force transmission element has a section (30), where the force transmission element is centered in the tube. The section is arranged in the vicinity of a distal end of the force transmission element. The section is formed by deforming the force transmitting element perpendicular to a longitudinal axis. An independent claim is included for a method for manufacturing a rod-shaped force transmission element of a medical tubular shank instrument.