In an edge tool having a cutting edge made of a nonmetal inorganic solid-state material with a facet formed on a ridge of the cutting edge, a pre-wearing layer having a thickness of 5 nm or more and having a surface structure formed by a network of recesses and protuberances surrounded by the recesses is formed on a surface of the facet. The system provides its users with a line seeker alert, a major line move alert, a bet tracker, and a fully customizable display. The content distribution terminal selects dictionary information from the dictionary information registration DB based on the user information in the user information registration DB and the content of digital content associated with the user information, and adds the selected dictionary information to the digital content. This objective is achieved by offering a new service by means of which it is possible to start and execute a wait-time service at the terminal of the user when the requested connection is not available immediately. As the piston is moved to its forward position, the piston chamber volume is reduced and pressure within the piston chamber increases to a point where the pressure moves the valve member into an open position through an outlet.