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Milling

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9. The milling procedure is next. This is where the wheel style, bolt pattern, and valve-stem hole are machined into the wheel using a numerically controlled milling machine. Here you can see a Pro Comp Stryker after this process is completed. At this point, the wheel is inspected to ensure it has minimum runout to spec. From this point, the wheels are either sent out for plating or moved to the polishing area.

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