The Flexcut 5" Draw Knife features a high carbon spring steel that gives just enough to follow the contour of carving. It holds its edge quite well and is tempered like a spring while the edge is hardened to RC 59-61. The wooden ash handles are ergonomically shaped and designed to fit comfortably in your hand while you work with your wood. This draw knife flexes in either direction to do round or hollow work. Great for rough or delicate shaping.