American Quicksilver provides a wide range of circular slitter knives for a variety of industries, including the paper, plastics, and nonwoven industries. All of our knives are manufactured in an ISO 9002 certified factory. Sizes range from 10mm OD to 300mm OD. We supply these knives with a wide range of material selection, ranging from 52100 tool steel, to stainless steel, to ultra high speed steel, among others. We have many of these items in stock and can custom make these items upon request.