Developer's DescriptionBy S.E.The calculator counts the the total flat length according to the K-factor you specify.The calculator counts the the total flat length according to the K-factor you specify.If you do not know the value of K-factor, then the program, determining the the total flat length, depending on the method of bending and stiffness of the material offers approximate values of the K-factor.The program helps to easily calculate the real value of K-factor for your material, tool, tooling, technology.