NT blade with 35 degree angle point for precision art knives with more durability. Refill blades are packed in a protective plastic container. Extra sharp tip precision blades are great for crafts, model making and other artisanal projects. These professional blades are made of high quality carbon tool steel and produced through multiple stages of precise process to obtain the ultimate sharpness and optimum edge-retention. 10 carbon steel blades per pack. Good for hobby projects, crafts and other artisanal projects. Made in Japan.