This is an additional set of slitter shafts, same as the one that comes with the Baum Ultrafold 714XLT Air Feed Paper Folder. This comes with (4) pull out tire assemblies but no tooling for perforating, scoring or slitting. Tooling is ordered separately. The distance between the shafts is fixed, and you can not micro-perf and are limited to a soft score using the rubber tire.