Die Casting is the process of forcing molten metal under high pressure into the cavities of steel molds, called dies. Dies range in complexity to produce any non-ferrous metal parts from sink faucets to engine blocks, it offers a more uniform part, generally good surface finish and good dimensional accuracy, as good as 0.2 % of casting dimension. For many parts, post-machining can be totally eliminated, or very light machining may be required to bring dimensions to size. Die casting molds tend to be expensive as they are made from hardened steel, also the cycle time for building these molds tend to be long.