Vertex Hardness Calculator ( https://www.vertexmachines.com ) is an application which is used to calculate Hardness in Brinell, Vickers & Knoop scale, user have to select appropriate Hardness scale and enter the basic information.

http://www.vertexmachines.com > Downloads > Hardness Calculator

Direct link: https://www.vertexmachines.com/downlods/hardness_calculator

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