This is a used machine.
This OLIVER 20swg (1.0mm) BUTTON PUNCH SNAP LOCK ROLLFORMER is a 9 station machine. They are principally used in the HVAC industry, for joining sheet metal at right angles on straight and curved duct sections. The female ‘Lock’ is formed in one pass and the flange, complete with the punched louvers is formed on the auxiliary side of the machine. Simply snap the flange into the female section. There is no knocking over of the edges as with the Pittsburgh Lock. Comes complete with 415v, 3 Phase Electrics. (Ref:280)
This machine is now sold.