Maintain razor-sharp knives in your commercial kitchen with the Victorinox 4.3391.3 replacement sharpening stone, engineered for the Victorinox 40997 honing system. This high-performance stone features a durable Crystolon bench construction, providing unmatched durability and stability during heavy-duty sharpening tasks. Its dual coarse and fine silicon carbide abrasive surface ensures a seamless transition from aggressive grinding to refined honing, catering to a wide range of blade types—from chef's knives to butcher knives. Ideal for professional chefs, culinary classrooms, and butcher shops, this stone delivers consistent, professional-quality results every time. Designed for efficiency, it reduces downtime and maintains optimal knife performance, directly contributing to productivity in high-pressure kitchen environments. Whether you're a restaurant owner, chef, or culinary instructor, the Victorinox 4.3391.3 is a must-have tool for maintaining a sharp edge on your arsenal of knives.