Wudtools Exports manufactures Circular Knives. Wudtools Exports offers special tools for varied applications such as rubber, paper, magnetic tapes, cigarettes, etc. These Circular Knives are useful for varied applications industry wise. They are available in hundreds of sizes, in various forms, various cutting angles, with or without perforations. Tungsten Carbide Powder Metallurgical Steel, etc is used as material for various applications.