This is a gem born in America and is widely loved throughout the world in history. Exceptional sharpness and a high degree of perfection. Features: 35R Carving Replacement blade for wood carbine knives. The inner curve is uneven (radius 1.4 inch (35 mm) earl), for general engraving. The blade material is carbon steel and hardened with a special heat treatment. The thickness is 0.03 inch (0.8 mm) thicker than the regular replacement blades. Compatible Holders: Wood Carving Knife.