TWIN Master are the knives professionals reach for. They meet all the requirements of strict hygiene, safety, and quality regulations demanded in a commercial kitchen. And now they are available for purchase for the home kitchen. Featuring a high initial cutting performance, long-lasting cutting properties, and ergonomically shaped handles, TWIN Master provides the ideal selection of knives for a demanding kitchen. The knives in this series are NSF certified and have been independently tested for use in a commercial food service setting. They conform to all relevant NSF / FDA standards for commercial food use. These are the perfect knives for the ambitious home cook looking to maintain the highest standards in their cooking tools.