Maintain razor-sharp knives in your commercial kitchen with the Victorinox 4.3391.8 coarse sharpening stone, the ideal replacement for the 41010 sharpening system. Designed for professional use, this stone features a coarse-grit silicon carbide surface that swiftly restores worn edges during early-stage sharpening, ensuring knives are ready for demanding restaurant tasks. Its durable construction and consistent surface coverage make it a reliable choice for high-volume kitchens where efficiency is key. The dark industrial finish and precise dimensions (11 1/2" x 2 1/2" x 1/2") ensure compatibility with the Victorinox system, providing a seamless upgrade for restaurant owners and chefs who prioritize performance and longevity. Whether you're outfitting a new kitchen or replacing a worn stone, the Victorinox 4.3391.8 delivers the precision and durability commercial kitchens demand.