EMPLOYEE WAS DRILLING HOLES IN ROOF TO SHOOT BOOM HOLE. HE REACHED ON THE SIDE OF THE BOLTER TO GET A PIECE OF BOLTER STEEL. HIS LEFT HAND WAS STILL ON THE BOLTER ARM & HE REACHED WITH HIS RT. HAND. HIS SHIRT POCKET CAUGHT THE UP-DOWN LEVER FOR THE BOLTER ARMS CAUSING THE ARMS TO GO DOWN & CUT HIS FINGER.