The Martor trapezoidal blades No. 60099 are ground on 2 sides and have rounded tips for safe handling. They are suitable for use with the Martor Cutter Secupro 625 safety knife, and can be used 2-fold by turning the blade. The variety of materials that can be processed is immense: up to 3-layer cardboard, rubber, textile, adhesive tape, plastic strapping, leather, wrapping, stretch and shrink fim, bagged goods, PVC flooring, film and paper webs, carpeting, and felt.