Ritchie Engineering Co., Inc. / YELLOW JACKET 60333 *Ritchie 1/2 OD Mandrel Quick change bending mandrel Index marks to locate bends For complete tube bender kit that includes all mandrels required to bend 1/4", 5/16", 3/8", 1/2", 5/8", 3/4" and 7/8" tubing See: Yellow Jacket 60331