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Long desired a way to faster hand-grind rocks for polishing, but not wanting to spend a lot of money on something I might not use very often, and given some mostly worn out but not-done-yet diamond disks from Chris, I rigged up this device from a cheap bench grinder found at Harbor Freight. It works!
0919A_NewDiamondGrinder.jpg (366 Kb) (under photos/16/Random/)
By Alan Silverstein, ajs@frii.com (page updated Tue Mar 10 18:16:39 MDT 2026)