A feed roller, comprising a round plate-type flange body, and radial ribs fixed at an even spacing over its outer circumference with gripping members for providing a firm grip of the surface of a tree stem being handled by the feed roller. Further, the outer edge of the plate-type ribs is disposed at an oblique angle to the axis of the feed roller, and the outer edge of each rib comprises several gripping members having a straight blade edge, arranged such that the blade edges extend parallel to the axis of the feed roller.
