THE INNER CAGE MILL HAMMERS AND CAGE WERE BEING ASSEMBLED. SMALL WOODEN BLOCKS WERE BEING PLACED UNDER EACH BOLT TO SUPPORT IT IN THE RECESSED POSITION. AS THE BAR WAS BEING USED TO RAISE THE RING, PRY BAR SLIPPED AND THE RING DROPPED APPROX 2 INCHES MASHING THE TIP OF THE 4TH FINGER. FINGER TIP BONE WAS FRACTURED.