Martin Yale Intimus PacMaster VS Shredder - When you need packaging, the PacMaster will help you get high-quality packaging material free of charge! The special PacMaster technique converts empty corrugated boxes, which previously cost money to dispose of, into "free" large-volume filler material suitable for packing even sensitive goods for transport. The PacMaster is very simple to operate. The PackMaster’s lockable main switch also acts as an emergency stop and it has a rotary knob to control On/Off and reverse functions.