The Tapered Round has a wider top and a narrower bottom with a rounded cutting edge. Use a Tapered Round for bead raising, block lettering, engraving on uneven surfaces, and line engraving. Length: 1.8" (45.72 mm). Shank 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).