Roberts R10931 Lino or Linoleum Knife , RWS127 This Knife made by Roberts is the traditional knife used by hard floor layers to cut and fit Linoleum, Sheet Vinyl and carpets. This type of knife has an extra heavy point and blade made from High carbon steel, and is designed with a rubber grip handle for comfort when cutting very hard material. As with all sharp tools care must be taken when using this tool.