18.0 IN. JG BY 4.0 IN. WD BY 6.0 IN. HT;9.0 LBS;RQRD TO INSPECT 4000 CYCLE/ILC CORE HPT DISK O.D. REAR SNAP DIA;INCORPORATES ELECTRONIC OUTPUT FOR DIAMETRICAL MEASUREMENT AS WELL AS HEAT SENSOR TO MEASRURE DISK TEMPERATURE DURING INSPECTION;USES MASTER PWA56547;CONSTRAINED IN FIXTURE PWA56544;SERD 6667