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Tumbling Machine for Gemstone, Small Parts.
Anything from tablespoons to jet-engine blades can be polished in a tumbling machine, or barrel finisher.
Uniform speed range from 10 to 30 RPM's.
Not only metal but wood, plastics of various types, also jewelry, can be given high polishes with the right abrasives and filler materials.
Four pages ( 2 sheets - front and back on both )
B & W photos, illustrations, expanded views, and instructional narrative.
My plans are from original source materials such as books, magazines and other publications and the pages are carefully removed.
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