OLFA® is known worldwide as the inventor of the snap-off blades and the revolutionaire rotary cutters. In 1956, founder Yoshio Okada developed the first snap-off knife, inspired by the break points of chocolate and glass. In 1979, OLFA® introduced the first rotary cutter, which changed the fabric cutting process forever.erard. OLFA® has stood for uncompromising sharpness, reliability and safety ever since. The products, developed and produced in Japan, are used in construction, art, office environments and creative sectors. The characteristic yellow colour symbolises safety, a core value of the brand.