Norton Model HS3 Hard Translucent Arkansas Round Edge Slip Stone Ultra Fine Round Edge – Great for final edge sharpening of carving tools & gouges 3\” length x 1-3/4\” width – 1/4\” x 1/16\” round edge radius Product Description Specs Norton Hard White Translucent Arkansas Round Edge Slip Stone. Great for final edge sharpening of carving tools & gouges. Use a few drops of mineral oil to prevent glazing while sharpening. 3\” length x 1-3/4\” width – 1/4\” x 1/16\” round edge radius. Made by Norton, Saint Gobain. Model HS3. Made in USA. Product Length Width Radius Model Norton Fine Slip Stone 3\” x 1-3/4\” x 1/4\” x 1/16\” 3\” 1-3/4\” 1/4\” x 1/16\” round edge radius HS3 | 614636