#13-146 Bead Roller Dies Half U-Profile R3.5mm
From Lazze Inc.
Bead Roller Dies Half U-profile R3.5mm
Those dies Lazze using a lot, many time it's very useful when you just want one side of the bead and with a radius.
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.