The Silhouette Punch Tool is exclusively for the Silhouette Cameo 4 series cutting machines. The Punch Tool allows you to punch weeding points in your vinyl and heat transfer projects. Before cutting out your project, the software will prompt you to choose whether you want to weed the negative space (like for a vinyl decal) or the positive space (like for a stencil). Your Punch Tool will then create weeding points to make it easier to weed your vinyl or heat transfer once the cutting process is completed.