Abstract: A positioning guide for accurately positioning and guiding lengths of elongated rubber, plastic and other resiliant stock material having a predominately cylindrical exterior surface configuration being fed along a feed path to a cutting machine having a rotary knive and a pair of endless drive belts flanking the feed path. The positioning guide is formed of an integral elongated plate-like body of a length greater than the span of the drive belts along the feed path having a straight guide bore extending therethrough of circular cross-section at its opposite end. The plate-like body has a width and thickness greater than the diameter of the guide bore at the ends and having a pair of opposite elongated flat-bottomed depressions each forming a relief cavity in top and bottom faces of a plate-like body for receiving the confronting reaches of the drive belts so that the stock material is exposed in the region of the depressions for driving and positioning contact with the confronting drive belt portions.