Abstract <p>Currently, the quality of an abrasive tool is usually estimated directly under the production conditions of the consumer enterprise, which is associated with methodological difficulties, time costs, and often insufficient objectivity of control due to the impossibility of analyzing a large sample of test wheels. The lack of modern methods and means of technology control in the production of tools does not guarantee the stability of their quality, including the wear resistance parameter, which predetermines the durability and grinding coefficient of the wheel. The purpose of the study is to find the possibility of express quality control of an abrasive tool made of electrocorundum material according to the criterion of relative wear resistance. Tests have been carried out and the results of wear resistance and energy efficiency of grinding various samples of abrasive wheels by the method of abrasion against a counterbody have been obtained. It has been shown that the use of the Shlif-3 modernized device allows for express quality control of an abrasive tool, including determining the relative wear resistance. A correlation between this indicator and the operational and technological characteristics of the tool has been established.</p>