Olfa® 13-segment, 9mm snap-off blade is made from high-quality carbon tool steel. Micro-honed blade provides superior initial sharpness and edge retention. Exact 59° front-edge angle optimizes cutting power and minimizes blade breakage. These blades are designed for precision cuts through vinyl, window film, and wallpaper, as well as packaging, shrink wrap, caulking, foam board, and many other materials.