... lost wax process 3)satin or mirror polish stainless steel end capsSpecification1, investment casting ,precision casting2, carbon steel / ... to 1.5Min.Wall Thickness0.55 to 103,Surface roughness80 to 120 RMS are average4,Hole lengthMaking a good hole in a casting is dependent on ... 300 series stainless steel an 17-4PH are quoted with a solution anneal7,GagingWe proform a 100% visual inspection ,however ...