Slitter cutter sheet metal and aluminum , The sheet metal slitting machine hand

[Frank S]

How is that chain drive system working out for you as opposed to having spur gears?
Every bead roller slitter design I have ever seen or used drove the shafts in opposite directions which would pull the metal into the dies
driving them in the same direction seems to me like it would cause you to have to use more effort to feed the materials and much higher friction in the process.