A chip-removing tool of a surgical torque-transferring instrument includes a distal engagement segment which is adjoined by a tool shaft whose proximal end portion is prepared for a torque-transferring insertion into a tool mounting of the instrument. The proximal end portion is subdivided at least in a functional section &ldquotorque transmission&rdquo and a functional section &ldquoaxial locking&rdquo which is axially spaced therefrom. The functional section &ldquoaxial locking&rdquo is arranged with respect to the engagement segment so as to be proximal relative to the functional section &ldquotorque transmission&rdquo.