NC machine tool

An NC machine tool comprising:

• at least one movable unit;
• drive means having a plurality of axes for movement and operative to move the movable unit along the axes;
• manual operation means for driving the drive means by manual operation;
• axis selection means for selecting one of the plurality of axes along which the movable unit is to be moved by the manual operation means and generating a selection signal indicative of the selected axis;
• positional coordinate calculating means for calculating positional coordinates of the movable unit with respect to the plurality of axes on the basis of a movement command;
• display means capable of displaying the positional coordinates of the movable unit with respect to the plurality of axes at least in a list form;
• and
• display control means for controlling the display means to display the positional coordinates at least in the list form on the display means;
• wherein the display control means controls the display means to display the positional coordinate of the movable unit with respect to the selected axis separately from the list of the positional coordinates on the display means when receiving the selection signal indicative of the selected axis from the axis selection means in a manual operation mode, the positional coordinate of the movable unit with respect to the selected axis being one of the positional coordinate contained in the list.