This metal working system eaily cuts and forms aluminum and steel up to 18 gauge. Allows you to duplicate hard-to-find replacement panels or create custom parts. The ductile iron frame offers superior strength and has less flex than other models. The system also features solid steel shafts and tool steel mandrels for top quality performance. The complete system (28069) is actually six tools in one: three bead rollers, (1/4in., 3/8in. and 1/2in.), and three offset flanging tools (1/16in., 1/8in. and 1/4in.).