Abstract: An improved vise and an attachment for a conventional vise is disclosed that permits a user of the vise to machine all sides of a workpiece gripped between the jaws of the vise without having to remove the workpiece from the vise and incur operational downtime and expense. A plurality of grip blocks are removably attached either to the vise directly, or to a grip set attachment for the vise. The grip blocks may be selectively installed on either the vise or grip set at those areas which require holding power, and not installed from those areas along the gripped sides of the workpiece that the user desires to access. With a portion of the grip blocks selectively removed from the vise or grip set, the user can machine all sides of a gripped workpiece, including substantial portions of the sides of the workpiece gripped by the vise.