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09-28-2014, 02:31 AM
Thread: Garage Sale Find: ?
by Hirlau- Replies
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It's probably a dual grit Norton or Carborundum...
It's probably a dual grit Norton or Carborundum (silicon carbide),,,,, by the measurements probably a Norton JB45,,,,,course & fine,,, but,,, the course could be 180 grit by the charts of Norton,...
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