GRS offers a family of V-shaped gravers made from GlenSteel HSS. What is GlenSteel? GlenSteel is a special high-speed steel (HSS) made by GRS. It features outstanding toughness to resist breaking and chipping, even with a slender, fine geometry. It wears predictably to help eliminate catastrophic tool failures that damage work and confidence. GlenSteel is an excellent all-around choice for professionals and hobbyists when a tough graver is needed. It is cobalt-free so users are not exposed to cobalt dust when sharpening. Made with a precision V-point gemoetry and a convenient 3/32" square shank. Simply sharpen the face, add a heel and the GlenSteel V-point Graver is ready to use.