Abstract: A turret lathe having a part gaging probe at one position on the turret. The lathe has a probe cover supported in a holder when the probe is in use. The numerically-controlled lathe mechanism enables the turret to carry the probe over the cover to apply or remove the cover during the cycle of operations.

Abstract: An improved steadyrest includes a workpiece support quickly releasable from a workpiece upon only several adjustment screw revolutions. The support is freely movable away from a workpiece, after release, without further screw revolution. This permits full release and opening of the steadyrest without full backing off of the positioning adjustment, facilitating workpiece access and providing time savings.

Abstract: A turret lathe is disclosed in which the turret supports a plurality of tools at a plurality of tool block locations formed thereon which are located at varying angular positions on the turret. These locations are so positioned as to maximize the number of tools supportable by the turret while still enabling all of the tools to be moved through their full cutting range without any one tool interfering with a workpiece or a workpiece supporting chuck while any other tool is operating upon that workpiece. Because the tools are located at varying angular positions on the turret, which positions are not even multiples of one another, the lathe incorporates an indexing control operable to index the turret through those varying angular arcs so as to enable any selected tool to be positioned at the tool cutting station of the machine.