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 59
Fig, 90. Spiral Screvvdriv5r. HOUOIN H^NDLE … advantage lies in the rapidity with which it works. Fig.90. The spirals should be kept well lubricated. Ratchet screwdrivers, while not so rapid in their action,are useful and are preferred to the common screwdriverby mechanics. 69. Awls.—Patent awls arein quite common use. Fig. 91illustrates one…
Woodwork (Manual training)
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