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rock tumbler

Tumble finishing, also known as tumbling or rumbling, is a technique for smoothing and polishing a rough surface on relatively small parts. In the field of metalworking, a similar process called barreling, or barrel finishing, works upon the same principles.
This process is very similar to the natural processes that produce "sea glass" or "beach glass".

View More On Wikipedia.org
Recent contents
  1. JO JO

    40 lb Rotary Tumbler, MJR

      1. For Sale
    • $260
    • Vancouver
    • Washington
    great for wet tumbling brass 40 lb Rotary Rock Tumbler, MJR TUMBLERS AWARDED BEST HIGH END TUMBLER
  2. gregfisher

    Thumbler Tumbler

      1. For Sale
    • $45
    • Hillsboro
    • Oregon
    Model MP-1 used only 2 weeks
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