Norton IM200 -8 Three Stone Sharpening System Review

This sharpening stone system was developed by Norton Abrasives, a world leader in products for cutting, grinding, blending sanding, polishing, and finishing. A fine India stone and medium and coarse Crystolon stones are included. India stones are smooth cutting stones which come from India, and are mainly made up of aluminum oxide. They are excellent for deburring, creating keen edges and providing quality finishes. The India stone used with this system is 320-grit aluminum oxide. The Crystolon stones are 100-grit and 150-grit silicon carbide stones. All Crystolon stones are created with silicon carbide electric furnace abrasive. This process includes ball-milling the abrasive to the right particle size. It is then batch blended with selected bonding agents, resulting in exact characteristics that one wants in a finishing stone. The abrasive cuts rapidly and is harder than all natural abrasives except diamond. Crystolon is generally used when sharpening speed is preferred over a fine cutting edge.