"CAVITY SINKING ELECTRODE HOLDER/EDM;C/O 1 BRACKET,ITEM 2 MATERIAL STEEL,EQUIPPED W/PIN ADAPTION FOR MACHINE USED AND 1 CLAMP,ITEM 3 SECURES ELECTRODEON BRACKET W/2 BOLTS,ITEM 4 USED TO MACHINE INNER STATIONARY AIR SEALS STG 2/3/4;ELECTRODE P/N 856A5578P03,P04 OR P05 USED;TOOL SET P/N 856A5578G01"