These custom designed work-holding clamps, shaped like tuning forks, hold and support 5″ x 14.5″ x 240.5″ side frame plates onto one of our T-slotted bar mills. The T-slotted bar mill, machine table is 72″ x 144″. These top plates rotate 90° to the vertical plane so that we can drill holes in either the x-, y-, or z-plane, dependent ...