Narex Tools - 826220 PROFI carving chisels are hand-made tools of the highest quality, designed especially for professional carvers. Blades are made ‹‹from chrome-silicon alloy steel and heat treated for hardness of 59 1 HRc. All blades are hand polished. The edges are sharpened and lapped with abrasive paste and arkansas stone. Handles have an octagonal barrel shape and are made of beach wood. The surface is stained and waxed.