GRS 022-628 C-Max Carbide Onglette Graver # 3. Preshaped with a tool point width, this C-Max Onglette can be used for cutting borders, inlay work, cutting lines with varying widths, line engraving, and stone setting techniques. Length: 1.8" (45.72 mm). Diameter: 0.125" (3.175 mm). This graver features two flat alignment areas on the shank for quick orientation in a QC Tool Holder. The set screws on GRS QC Tool Holders will contact the flat spots of the graver, ensuring that the graver is loaded accurately. Use with QC Tool Holder for 1/8" Round (#004-873).