KAKA RM-12 Sheet Metal Fabrication Bead Roller Kit & Forming Mandrels 12 inch throat depth Max. 18 gauge mild steel capacity Easy to mounted on bench vise, save working space Includes 6 sets of dies - 1/4", 3/8" and 1/2" bead roll, 1/16", 1/8" and 1/4" step dies. Optional stand available