RT Journal Article SR Electronic A1 Vasilko, Karol T1 Taylor Equation of Durability and Its Modification JF Manufacturing Technology Journal YR 2017 VO 17 IS 3 SP 393 OP 397 DO 10.21062/ujep/x.2017/a/1213-2489/MT/17/3/393 UL https://journalmt.com/artkey/mft-201703-0021.php AB Recent development of the application of new kinds of material in transport and production technology places higher requirements on the technologist at the determination of cutting conditions. The assortment of recent kinds of cutting material enables to intensify cutting conditions while maintaining acceptable tool durability. The dependence of tool durability on cutting speed, or "basic law of machining", is the basic means to determine tool durability at selected cutting conditions. The paper contains a suggestion to modify the original Taylor equation on recent conditions of productive machining.