| http://www.w3.org/ns/prov#value | - A portable grinding tool comprising; handle means; a holder having a bore therein, said holder including a clamping ring for adjustably fastening said holder to said handle means, a slot extending through said clamping ring, and adjusting means interconnecting the ends of said clamping ring adjacent said slot for alternatively loosening and tightening said clamping ring ends together, such that th
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