#13-114 Bead Roller Dies step dies
From Lazze Inc.
Bead Roller dies, Step dies
Usable to make a step and overlap two sheets and spot weld them together.
ID = 20mm
Made for a Bead roller with around 50mm (2") between the shafts when they're parallel center to center shaft.
Fits LAZZE's Bead Roller or a machine with 20mm shafts.