GRS&reg; Tools 002-115 Glensteel Square Gravers GlenSteel is a special high-speed steel made exclusively by GRS for tough engraving and stone setting Gravers made with GlenSteel will not break or chip like other tools and are easier to grind and sharpen than other HSS tools GlenSteel is cobalt-free, eliminating the concerns of cobalt exposure during tool sharpening and use GRS designed these GlenSteel gravers with this in mind Dimensions: 0.093 (2.35 mm) square by 2.7 (70 mm)