EE WAS ROOF-BOLTING & IN THE PROCESS OF DRILLING A HOLE. HE HAD DRILLED UP ENOUGH TO INSTALL HIS SECOND SECTION OF DRILL STEEL. THE STEEL DIDN'T SEAT INTO THE CHUCK AND HE HAD PRESSURE ON IT, WHICH CAUSED IT TO BOW. HE REACHED FOR IT WITHOUT TAKING PRESSURE OFF. THE STEEL SPRANG OUT STRIKING HIS LEFT INDEX FINGER.