Abstract: A tool post has gibs for locking tool holders onto dovetail tool mounts, the gibs having an extended range of movement vertically on the tool post to permit mounting of tool holders in a range of vertical positions on the tool mounts. The tool post has mounts for several tool holders, which may be independently locked on the mounts and unlocked from the mounts by adjustment of independently movable gibs. The tool post has a handle with a movable adjustable pawl, and upwardly-projecting screw heads projecting from the top of the tool post. The pawl is movable so that the handle can selectively be rotated between screw heads. The screw heads drive screws which move gibs for locking and unlocking tool holders on the tool mounts. The tool post has a base plate with a non-circular element rigidly attached thereto. The element may be fixed on a lathe to prevent rotation of the body of the tool post.