ENJURED EE WAS HOLDING A WRENCH ON A NUT WHILE ANOTHER EE WAS TIGHTENING THE BOLT. THE WRENCH SLIPPED WHILE TIGHTENING THE BOLT AND HIT THE INJURED EE ABOVE THE LEFT EYE. THEY WERE WORKING ON CRUSHER LINERS AND WERE IN CLOSE QUARTERS TO EACH OTHER. THE INJURED EE HAD TO HAVE 3 STITCHES ABOVE THE EYE.