"CRES,PH 13-8,8.915 IN. LG,IRREGULAR SHAPE,FIRST END,0.500 IN. HOLE,6.500 IN. DEEP,COUNTERSUNK 60 DEGREE BY 0.700 IN. DIA,SECOND END,THD HOLE 0.312-24UNF-3B,0.450 IN. DEEP,COUNTERSUNK 110 DEGREE BY 0.363 IN. DIA,AND HOLE 0.156 IN. DIA,0.100 IN. DEEP,SPACED 0.286 IN. CENTER TO CENTER"