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 75
suitable for this purpose and the tap should bedipped in it before cutting is started. A very useful little kink is illustrated in Fig. 78. Thisis for guiding the t^ps so they will enter the hole straight.A hole the proper size (not too large) is drilled througha block of Avood and this is placed… … Fig. 77—Determining the size of a twist drill with a gauge taper tap and this is emploj^ed for all ordinary purposes.The second one is known as the plug tap and it mil benoticed that it has a very small taper. The third tj^pe iWooden Block
Machine-shop practice · Handicraft
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