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 67
bit as in Fig. 105. File the inside surfaces of the nibs and the under surfacesof the lips. The most common mistakel)eginners make, and a mostserious one, is to file the nibson the outer surfaces. A littleconsideration will indicate thatto so file a bit is to make thecutting nibs begin a hole… … Fig. 105. Sharpening an Auger Bit TOOLS AND PROCESSES. 6^ In filing the under sides of the lips care must be takento get good clearance, remembering that the lips areproceeding downward at a fairly rapid rate. If sufficientclearance is not given the back edge of the lips, that partnearest and…
Woodwork (Manual training)
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