Diamond Hammer (A)
. A hammer or pick for “whetting” millstones. The diamond hammer is provided with several sharp-pointed teeth to give a uniform roughness to the surface of the stone. Also to a steel pick with diamondshaped point at each extrernity to recut grooves in stone.
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Entry taken from
Dictionary of Phrase and Fable,
edited by the Rev. E. Cobham Brewer, LL.D. and revised in 1895.