Norton India Oil Stone, Medium is a high-quality sharpening stone made with man-made aluminum oxide abrasives. This medium graded India oil stone is i for use as a transition step before final edge sharpening, providing light stock removal and a smoother cutting edge. Norton’s traditional oil sharpening stones, both man-made and natural, set the standard by which others are measured. If you prefer oil stone sharpening, this product exceptional performance and durability. The stone measures 8 inches by 3 inches by 1/2 inch and comes with a convenient storage case. For results, Norton Honing Oil is as the lubricant. Model Number: 54461