TWO MINERS WERE REMOVING A BROKEN CABLE ON A DRAGLINE BUCKET. THE BUCKET AND LINAGE WERE LOCATED ON LEVEL GROUND IN COOL WEATHER CONDITIONS. A CABLE WEDGE WAS BEING DRIVEN OUT OF THE PULL BAIL SOCKET IN WITH A PIN & 10# HAMMER. THE INJURED MINER WAS STRUCK ABOVE THE RIGHT EYE WITH THE HAMMER AS HE LEANED IN TO CHECK THE WEDGE AT THE SAME TIME THE HAMMER GLANCED OFF THE PIN.