GRS NTG Onglette Graver HSS Size EUR N-2/0, USA 2/0, 1.45mm Suitable for use with all types of metals, wood, bone, ivory, onyx. Used by engravers, stone setters, die sinkers, jewelers, and watchmakers. High Speed Steel Graver, Onglette, No. 2/0 Thickness: 1.45mm Yellow Tang