THE COAL MINER WAS HELPING TO ANCHOR TAILPIECE AFTER MAKING A BELT MOVE. HE AND ANOTHER MINER HAD JUST DRILLED A HOLE IN THE BOTTOM WITH A SCHRODER DRILL TO INSTALL THE ANCHOR PIN. HE LEFT THE DRILL LAYING BESIDE THE HOLE AND WHILE DRIVING THE ANCHOR PIN IN HE INADVERTENTLY HIT HIS FINGER ON DRILL STEEL.