Spare blade "ROCK HARD BLADE" 25mm for Tajima cutter The Tajima difference: Blades that combine the very best in raw materials, hardening and sharpening in the production strategy. Technical specifications : Only high-grade SK-120 steel: This is the top-of-the-range steel that guarantees exceptional strength and enables more precise machining and sharpening. Japanese hardening technique: Extensive experience in the heat treatment of steel to obtain greater hardness and long-lasting sharpening. Precise refining in several stages: Optimised edge geometry combined with cutting-edge sharpening technology deliver exceptional cutting performance. Optimised blade geometry and cutting edge angles: Best cutting performance for specific materials (ROCK HARD BLADE): Universal use for marking or cutting thick materials such as wood or drywall. An extremely sharp, tough blade that combines high-grade steel, Japanese hardening techniques and multi-stage sharpening to deliver long life and unique cutting performance.