Based in Solingen, Germany, Zwilling J.A. Henckels is a world renowned knife manufacturer. Henckels was founded on June 13, 1731 by knife-maker Peter Henckels. The name Zwilling comes from the German word for Gemini, the Third Sign of the Zodiac. The Sign is symbolized by Twins, hence Henckels use of the word “Twin” throughout their lines of cutlery. Henckels was founded in 1731, and their knives are currently sold in over 100 countries. Throughout the last 275 years, Henckels has made many first time achievements in the world of cutlery, including being the first manufacturer of stainless steel blades, designing the first multi-purpose kitchen shears, and developing the Friodur, ice-hardening process. The Friodur process brings the steel to 1000 degrees Celsius, then is cooled to negative 70 degrees Celsius and then finally during refinement stage the temperature is brought back up to 250 degrees Celsius. This procedure along with a perfect balance of chromium and carbon ensures optimum hardness and corrosion resistance. Henckels cutlery is sold within two major product lines, TWIN and International. The TWIN line is their premium forged German manufactured brand. The International line is their value brand which contains stamped blade knives manufactured in Asia.