The lifetime span of a diamond cutting tool ispredictable. This predicted lifetime span is then regarded as an importantfactor toward estimation of the building stone factory’s expenses. However,possible undesired happenings as breakage of the stones or cutting tools, arepreventable. Additionally, it is possible to increase the recovery of buildingstones production resulting in an increased net profit. The present study aims at determination of stonecutting ability of a diamond segment during its life time span usingphysical-mechanical properties of rocks. To do this, several samples arecollected from eight factories located in the a few Iranian provinces as ofTehran, Isfahan and Yazd. Hence, the amount of stone quarries that a singlediamond segment is able to cut during its lifetime is determined. Schmidthammer, tensile strength, P-wave velocity are proposed as the most effective independentcomponents. However, univariate and multivariate statistical models are developedbased on the aforementioned components due to predict the lifetime index of thecutting tools. The results indicated that among physical-mechanical propertiesof rocks, tensile strength is the most correlated factor with lifetime index ofthe cutting tools. The linear and nonlinear correlation is determined based ontensile strength as 0.863 and 0.905, respectively
