TWO EMPLOYEES WERE BOLTING TOGETHER. #1 WAS OPERATING THE GOPHER DRILL & #2 WAS ASSISTING. #1 HAD COMPLETED DRILLING THE HOLE & WAS INSERTING A BOLT. AT THIS TIME #2 WAS DOWNHILL. AS #1 PUSHED THE BOLT INTO THE HOLE HE YELLED TO #2 THAT HE WAS LOOSING CONTROL. #2 TRIED TO GRAB THE DRILL TO ASSIST. THE DRILL KICKED TOWARD #2 STRIKING HIS FACE, CAUSING A LACERATION & BROKEN TEETH.