a method is for producing a circular cylindrical body comprising a workable mass , having at least one helical internal cavity extending in the interior of the body . the body is initially produced with a straight internal recess , for example by means of extrusion . afterwards the body is cut to a defined length . the body that has been cut to length is then subjected to a rolling process by means of a friction surface arrangement while being supported over the entire length thereof on a support means . the rolling process takes place in multiple steps , wherein a rolling movement using a first axis of rotation is performed in a first step , and a rolling movement using a second axis of rotation that is different from the first axis of rotation is used in a second step . there is also an apparatus for performing the method .