WHILE AN EMPLOYEE AND THE INJURED WERE LOOSENING UP THE BOTTOM PLATE ON THE MIXER BOX WITH THE VISE GRIPS, INJURED GOT THE PLATE LOOSE AND THE PRESSURE RELEASED OUT AND THE VISE GRIPS FLEW BAC K AND HIT INJURED IN THE LEFT HAND PALM AREA BY THE THUMB, DEEPLY CUTTING HIS LEFT PALM AREA BELOW THE THUMB, STTITCHES WERE GIVEN.