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 121
Fig. 142—The text describes the method of drilling a hole in this manner care is taken in starting the drill, a perfectly accurateresult can be obtained. To make sure that the point ofthe drill is at the center of the stock, the method showli 120 Shop Practice for Home Mechanics … Pig, 1^3 How a drill would break if the hole shown in Fig. 142 was drilled in the usual manner
Machine-shop practice · Handicraft
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