"C/O CARBIDE INSERT FABRICATED FROM CARBIDE GROUP 9,GRADE K-313 AND STORAGE CONTAINER;SYMMETRICAL SHAPE,EACH SIDE HAS CUTTING POINT;USED W/PWA70802 TOOLHOLDER TO FINISH MACHINE PWA284 ABRADABLE COATING ON INNER DIA OF SET OF 7TH-12TH STAGE STATOR SEGMENTS;EACH ASSEMBLED IN FIXTURE PWA70794(7TH),PWA70796(8TH),PWA70798(9TH),AND PWA70800(10TH-12TH STAGE);USED ON VERTICAL TURRET LATHE;SERD 6998"