Dexter 360® series knives are manufactured in Massachusetts with American-made steel and 200 years of know-how. Dexter hollow-ground blades are extremely sharp and easily re-sharpened. NSF Certified. With this series of knives, Dexter has gone 360°; back to our roots. We’re combining our famous Green River® hollow-ground blades with a modern, ergonomic handle made specifically for food service. This complete line includes all of the necessary knives to outfit today’s commercial kitchen.