THE EE WAS DOING REPAIR WORK ON RUBBER CURTAINS AT THE COAL TRUCK DUMP. AS HE HELD THE MATERIAL TO STEADY IT WITH HIS LEFT HAND, HE BEGAN TO DRILL INTO RUBBER BELTING. AS THE DRILL BIT PENETRA TED THE RUBBER, IT CONTACTED THE INDEX FINGER ON THE LEFT HAND. SIXTEEN STITCHES WERE REQUIRED TO CLOSE THE WOUND.