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The casting model can be "cut" along a plane of symmetry; only a portion of the casting then needs to be modeled, with exactly the same results as if the entire casting were modeled.
Certain complicated castings may require a patternmaker to build a casting model to better understand the complexities of the tooling needed to produce the part.
Among the lineup are 10 spinning and 10 trigger casting models ranging from 6 1/2 feet to 8 feet, at suggested retail prices from $205 to $270.