Woodwork for secondary schools; a text-book for high schools and colleges, prevocational and elementary industrial schools (1916)
Griffith, Ira Samuel, 1874-1924 · Peoria, Ill., Manual Arts Press · leaf 65
0mf, %v:. »» • mr _ » i r-* W* d MS ^i^^i … Fig. 97. The Cuts of Files. Among the many special forms of files is the auger-bitfile, Fig. 98. One end has serrations on the two edges f5uRniON5 OM Sides ^ti^tAiioNS on Edges, Fig. 98. Auger Bit File. only, the other end has serrations on the two surfacesonly. This is done so that the nibs may be…
Woodwork (Manual training)
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