FIELD: machine tool manufacture; machine tool includes blank unit, tool unit, tuning device, circuits for separating, lengthwise feeding milling support, axially feeding milling cutter and differential circuit. SUBSTANCE: machine tool includes hydraulic links and hydraulic step drive units placed in circuits for separating, lengthwise feeding rest, axially feeding milling cutter and in differential circuit. Each hydraulic step drive unit includes hydraulic step motor kinematically joined with blank and tool and tuning device in the form of hydraulic pulse generator providing gear ratio of respective circuit by means of necessary frequency relation of hydraulic pulses. Said relation depends upon number of working slits of rotary spool of slide valve. Hydraulic pulse generator is connected with step hydraulic motor through pipeline system. EFFECT: simplified design of machine tool, enhanced accuracy of milling process due to lowered number of mechanical links and reduced metal consumption. 1 dwg
