This report examines the results of experimental studies to identify the influence of machining conditions using turning cutting inserts made of cubic boron nitride (CBN-100) when lathe turning blank workpieces made of hardened special steels (95Kh18-Sh, equivalent of X90CrMoV18/1L4112; 110Kh18M-ShD equivalent of X105CrMo17/1,4125; 40KhNYu-VI) on the roughness height parameters ...