Santoku translates as "three virtues" or "three uses" and refers to the versatility of the knife. Santoku knifes are shorter, lighter, and thinner than western style chef's knives. PVD is an environmentally friendly process that provides durable finishes. Sophisticated equipment provide precise process control and computer graphic interfaces to ensure consistent finish from batch to batch. It is a vacuum coating process in which solid metal is vaporized into plasma so it can be deposited as a high performance coating. This is the same coating that is on the most-premium diver and aviation watches. CTS-XHP is a very durable, extremely low maintenance stainless steel. It is intended to be used at 60/62HRC for specialty knives where the alloy's fine carbide distribution can be used to produce a keenly sharp cutting edge. In addition, the composition of CTS-XHP alloy has been balanced so that it can attain a minimum hardness of 60HRC when air cooled from hardening temperatures of 1,850° to 2,000°F (1,010° to 1,093°C) and is thus more forgiving during heat treatment than similar alloys. CTS-XHP resists corrosion in normal domestic environments and very mild industrial environments, including many petroleum products and organic materials.