Cutter head assembly for the clean cut box slitter. The Clean Cut Cutter Head is now machined from composite with two neodymium magnets that provide tremendous attachment to the Clean Cut Bar. The Cutter Head will fit firmly on the back side of the Clean Cut Bar at the measurement you would like to slit the film. Once you have the Cutter Head in place simply slide the material through the slot and pull the material through to create a clean cut edge.