Tumble finishing

（重定向自Barrel finishing）

Tumbled gemstones. (Note that four of the items in the picture are not tumbled)

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.

单词	Barrel finishing
释义	Barrel finishing 英语百科 Tumble finishing （重定向自Barrel finishing） 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.
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