Verrill, A. Hyatt (Alpheus Hyatt), 1871-1954 · New York, Dodd, Mead and company · leaf 88
ltyin doing this is due to the weakness of the steel,which if too soft will bend and turn and if toohard will chip and break. In a new tool theacuteness of the wedge or edge is fixed by themaker, and in resharpening the tools we must aim SHAEPENING TOOLS 71 to maintain this angle or wedge as nearly… … edge is due to the fact that the surface of thegrindstone is composed of innumerable grains,some harder and some coarser than others, andthe larger and harder grains cut more rapidly anddeeply into the steel than the smaller and softerones, and within certain limits the harder theblade is pressed…
Carpentry
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