Rotating mill vise jaws

A vise jaw combination used with a milling machine vise to hold a work-piece having either parallel edges or non-parallel edges, wherein said milling machine vise has at least one movable member disposing threaded holes for cooperating with fasteners to join said movable member and said vise jaw combination comprising first and second elements;

• wherein said first element comprises:
• A vertical axis tool post comprising a detachable wall disposing a vertical support member and vertical shaft, wherein said detachable wall and said vertical shaft have corresponding grooves for receiving said vertical support member;
• said detachable wall, said vertical support member, and said vertical shaft each have correlative holes cooperating with fasteners to join said detachable wall, said vertical support member, and said vertical shaft;
• wherein said vertical shaft is adapted to slide inside a thru hole disposed on said second element comprising:
• A rotatable vise jaw consisting of a one-piece structure and said thru hole disposed on said rotatable vise jaw, wherein said vertical shaft comprises a vertical longitudinal axis and wherein said thru hole disposed on said rotatable vise jaw is configured to slide along parallel to said vertical longitudinal axis, whereby said rotatable vise jaw is joined to said vertical axis tool post and is rotatable about said vertical shaft.