Before and after of machined aluminum part tumbled with Stainless Steel Media. The 'raw' showed machine marks, scratches and burrs on the edges. After vibratory tumbling with steel media, the part came out smooth, bright and ready for anodizing. Improved polishing could be achieved by additional tumbling with Corn Cob Grit or Walnut Shell Grit or hand buffing to create a near mirror finish.
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