This aluminum fixture was designed to hold the 1911 frame in your bench vise. It can be used for many hand operations and was originally developed for hand checkering. It keeps the frame out and away from the vise to protect it from being damaged from the vise jaws. The dodecagon (twelve sided) body offers many angles to position the frame so virtually any gunsmithing operation can be performed on the frame. This fixture is NOT intended to be used for machining operations.