EE WAS WORKING AT NOCC DURING KILNSHEET DOWN. HE WAS REMOVING REFACTORY FROM THE KILN WITH A 90LB JACKHAMMER & CHISEL BIT. THE BIT BROKE IN HLF CAUSING EE TO PITCH FORWARD WHILE HOLDING ONTO THE JACKHAMMER . THE JACKHAMMER THEN PINCHED HISFINGER BETWEEN THE WALL & ITSELF. RESULTING IN A BONE BRUISE ON HIS FINGER