Shop practice for home mechanics, use of tools, shop processes, construction of small machines. Contains a chapter also on theoretical mechanics and on miscellaneous information relative to shop work (1920)
Yates, Raymond F. (Raymond Francis), 1895- · New York, N. W. Henley Pub. Co. · leaf 110
s the flutes. Before the mechanic sharpens his first drill he shouldmake a careful study of the cutting edges of new drills.Manufacturers place drills upon the market perfectlyground, and for tliis reason no mistake can be made intrying to reproduce tlieir grinding. Drills sliould besharpened on… … Fig. 130—The proper method of holding a drill during grinding very lightly to the wheel. When it is touched to thesurface of the wheel it should be revolved for about 1/2revolution with a sweeping motion upward. Care shouldalso be taken to hold the drill at the proper angle on thewheel. Of course,…
Machine-shop practice · Handicraft
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