Shredder transforms used cardboard and corrugated board into ideal packing material. ProfiPack 425 shreds two to three layers of corrugated board in a single pass. Cardboard is perforated by the special cutting shafts and simultaneously cut to the required width. Bearing plates prevent the cardboard from twisting, bending or catching in the cutting device. Blade shafts are made of a single piece of induction-hardened metal, resistant to the occasional soft-metal staple. Groove form delivers precisely uniform perforation for optimal packing material. The large, powerful motor allows a high operating speed. Shredder features a simple on/off/reverse switch, sturdy steel housing, and built-in ruler for measuring the required packing-material width. Shredder features casters for easy mobility.