  Steel shot for tumbling.
This is from a really heavy quart jug of steel shot sold for use in a machine that cleans metal parts by rolling them around with a bunch of steel shot like this.
Source: Harbor Freight Tool Company
Contributor: Theodore Gray
Acquired: 24 March, 2009
Text Updated: 24 March, 2009
Price: $10
Size: 0.125"
Purity: 98%
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