GRS 022-617 C-Max Carbide Graver 90. Preshaped but should be sharpened properly before use. A V-Point or Square Shank is a versatile shape perfect for background removal, fine line engraving, general engraving, shading techniques, and comes in a wide variety of geometries (cutting point angles). Use with QC Tool Holder for 1/8" Round (#004-873).