MAIN EAST TAILGATE WEST. EE WAS HELPING THE MINER RIB PINNER LINE THE BOLT WRENCH UP WITH RIB BOLT. EE THEN PUT HIS HAND ON THE DRILL & STARTED TO TURN TO RETURN TO HIS MINER BOLTER POSITION. WHEN THE RIB DRILL WAS EXTENDED TO TIGHTEN THE BOLT, THE END OF 2 OF EE'S FINGERS WERE CAUGHT BETWEEN THE DRILL AND THE DRILL STOP.