Lathe

A lathe comprising:

• a spindle configured to hold a workpiece and rotate on a spindle axis;
• a tool post comprising at least one tool holder including a tool, the tool holder extending along a tool holder axis;
• the tool being configured to machine the workpiece by moving the tool post in a direction towards a front side on which the tool cuts into the workpiece held by the spindle;
• wherein in a plan view of the lathe, the tool holder axis is substantially perpendicular to the spindle axis;
• a driving shaft extended in an axial direction perpendicular to the spindle axis and configured to move the tool post in the axial direction;
• and
• a movement restricting unit provided on an end of the driving shaft with respect to the axial direction to restrict movement of the driving shaft in the axial direction;
• wherein the tool post is provided with a driven unit engaged with the driving shaft, and the driven unit is movable in the axial direction according to rotation of the driving shaft,
• wherein the axial direction comprises a direction that the driven unit approaches the movement restricting unit,
• wherein the direction that the driven unit approaches the movement restricting unit faces the same direction as the direction that the tool cuts into the workpiece, and
• wherein in the plan view, an orthogonal projection of a cutting edge of the tool, projecting in a direction substantially parallel to the spindle axis so as to project onto the driving shaft, partially coincides with the driven unit.