"STEEL 17-4PH,CRES,2.370 IN. LG,2.080 IN. H O/A,1.600 IN. LG SHAFT PROJECTING AT 90.0 DEG TO ARM,8 MICROINCH SURFACE FINISH,ARM DIM.,1 HOLE 0.250 IN. DIA W/0.320 IN. CORNER RADIUS,1.650 IN. FROM SHAFT CENTER,0.400 IN. SHAFT MTG CORNER RADIUS,0.480 IN. O/A ARM THK"