... MACHINE, Turret type/ Bed Type/ Vertical & Horizontal Type, 16 steps/ variable/ step , widely sold SMARTECH TURRET MILLING MACHINESTANDARD ACCESSORIESDraw Bar / Electric ... feed unit (for all series) ;11) X-axis inverter motor variable feed system (for 5S, 6S & 7S series) ;12) Y-axis ... inverter motor variable feed system (for 5S, 6S & 7S series) ;13) Digital read ...