Olfa KB4-F/5 Art Knife Blade Refill 5-Pack AK4 Refill

The history of OLFA Utility Knives began in 1956 when Mr. Yoshio Okada, the founder of the OLFA company, sought a solution for the need for blades that would not lose their strength and sharpness. The superior quality of OLFA blades is the perfect result of a multi-stage production process. All OLFA blades are produced at perfect angles for high-grade precision sharpness, long-lasting durability, and balanced cutting. The blades do not lose their hardness during tapered sizing and sharpening processes. Today, OLFA blades have become the international standard in the (snap-off) blade industry with their angles, lengths, and widths. The name OLFA consists of two Japanese words and translates to "blade break." The parallel, right-leaning rectangles in the OLFA logo represent (snap-off) blades.