EE WAS WORKING ALONG NUMBER 9 BELT AT 104 BLOCKMAIN NORTH, A DRILL STEEL HAD BEEN INSERTED INTO CHUCK TO BE USED AS A HANDLE TO MOVE AIRDRILL(GOPHER DRILL). WHILE MOVING, STEEL CONTACTD BELT CAUSING IT TO JERK AND STRIKE INDIVIDUAL ON LEFT LOWER LIP, RESULTING IN A LACERATION REQUIRING 10 SUTURES