Machine tool

A machine tool comprising:

• a spindle-side workpiece holder provided to a spindle that rotates about an axis, the spindle-side workpiece holder being capable of holding a workpiece to be worked on;
• a workpiece holder for temporary placement capable of holding the workpiece;
• a driver that moves the spindle-side workpiece holder and the workpiece holder for temporary placement relatively to a facing position in which the spindle-side workpiece holder and the workpiece holder for temporary placement are able to transfer or receive the workpiece to or from each other, and to a separated position in which the spindle-side workpiece holder and the workpiece holder for temporary placement are able to transfer or receive the workpiece individually;
• and
• a single loader that includes:
• a spindle-corresponding workpiece holder that includes a surface that faces the spindle-side workpiece holder in the separated position;
• and
• a temporary placement-corresponding workpiece holder that includes a surface that faces the workpiece holder for temporary placement in the separated position;
• wherein
• the spindle-side workpiece holder and the workpiece holder for temporary placement are moved relatively in a direction intersecting the axis of the spindle;
• and
• the spindle-corresponding workpiece holder transfers or receives the workpiece to or from the spindle-side workpiece holder and, simultaneously, the temporary placement-corresponding workpiece holder transfers or receives the workpiece to or from the workpiece holder for temporary placement.