The article focuses on the methods for evaluating wear of two types of saw blades. One type does not have sintered carbide plates and another are the plates soldered on. The article also addresses application of various methods with respect to increase the life of saw-blade teeth. Gradual wear of saw blade cutting knives gives rise to certain phenomena, which have impact on the whole process of cutting. The wear of cutting wedges of a saw blade considerably influences the entire system - the machine - tool - work piece, and thus it is crucial to correctly assess the wear of cutting wedges. Several methods were chosen and applied in order to ensure correctness of such an assessment and the results were compared. Subsequently, the materials commonly used for production of tools were evaluated with respect to their microstructure, suitability of the methods to increase their wear resistance and so increase their useful life. The analysis of the factors which need to be considered, will allow us to draw conclusions significant for further experiments.