The Stepped Round has a rod-like shape. A 1.8 mm diameter tool point can be used as is or sharpened to a specific geometry to be used for background treatment and texturing, stone setting techniques, fine engraving, general engraving, and more. Length 50.8 mm. Tool Point Diameter 1.8 mm. Shank Diameter 2.35 mm. Use with Round QC Tool Holder, 2.38 mm (#004-853).