Abstract: The tool head of the cross slide of a lathe comprises a tool head housing, which is mounted in a body of the cross slide and angularly adjustable relative to said body, and a tool spindle, which is rotatably mounted in said housing and operatively connected to a drive spindle by an angle drive. To increase the range of operations by which a workpiece can be machined, the tool head housing is mounted in said body so as to be angularly adjustable on the axis of the drive spindle, which is at right angles to the longitudinal axis of the lathe, and the tool head housing is adapted to be coupled to the drive spindle or to the tool spindle.

Abstract: Two juxtaposed cross slides provided with toolholders are slidably mounted on the saddle of a lathe. To permit an unrestricted use of lathe tools as well as of boring, drilling and milling tools, each cross slide is movable independently of the other. One of the two cross slides carries a turret on the side which is remote from the other cross slide. Said other cross slide carries a tool head, which comprises a tool spindle, which is adapted to be rotationally driven. That tool head is mounted for angular adjustment on an axis which is at right angles to the tool spindle, to the main axis of the lathe, and to the guide for said other cross slide.