Machine Tool

A machine tool, comprising:

• a spindle which rotates together with a workpiece around a spindle axis;
• a tool post to which is attached a deburring tool that cuts a periphery of a hole in an orientation intersecting the spindle axis in the workpiece and which rotates the deburring tool around a deburring tool center axis;
• and
• a control unit which controls a relative positional relationship between the spindle and the tool post and which performs control to change a cutting position by the deburring tool along the periphery, wherein
• the control unit
• acquires a command for instructing the rotating deburring tool to either perform, on the periphery, down-cutting in which a cutting direction by the deburring tool is opposite to a relative movement direction of the deburring tool or to perform, on the periphery, up-cutting in which the cutting direction and the relative movement direction are the same, and
• performs, at the cutting position, control to cut the periphery so that the cut instructed by the command is maintained.