EE WAS INSTALLING A RUBBER WASHER ON A BOLT OUTSIDE OF THE MILL AND INSERTED FINGER INTO THE HOLE CONTAINING THE BOLT. AT THAT TIME,THE METAL LINER WAS RELEASED FROM THE LINER HANDLER INSIFDE OF THE MILL CAUSED THE EE'S FINGER TO BE SMASHEDBETWEEN THE BOLT AND THE MILL. THIS CAUSED A FRACTURE AND LACERATION REQUIRING 12 STITCHES.