Patent ID: 8720311

Claim:
A tool holder comprising: a base constructed and shaped to be mounted to a rim of an indexing turret of a machine tool, the base defining an x-axis that extends radially away from the turret when the base is mounted to the turret, the base defining a z axis that is parallel to a pivotal axis of the turret, the base defining a y axis that is perpendicular to the x and z axes; a tool mount for releasably attaching a tool to the tool holder; an adjustable y axis alignment structure adjustably connected to the base so as to be positionable in a plurality of y axis positions relative to the base, the y axis alignment structure having a y axis key surface positioned and shaped to mate with a complimentary key surface of the turret rim so as to control the y axis position of the base relative to the turret; and a first threaded element threadingly engaged with one of the base and alignment structure such that rotation of the first threaded element moves the first threaded element along a first threaded element axis relative to the one of the base and the alignment structure, wherein the first threaded element axis is at a skewed angle relative to the x and y axes, and wherein the first threaded element operatively abuts the other of the base and alignment structure such that movement of the first threaded element in a first direction along the first threaded element axis forces the y axis alignment structure in a positive y axis direction relative to the base.