American machinists' handbook and dictionary of shop terms : a reference book of machine shop and drawing room data, methods and definitions (1914)
Colvin, Fred H. (Fred Herbert), 1867-1965, Stanley, Frank A. (Frank Arthur), b. 1874 · New York : McGraw-Hill book company ; London : Hill · leaf 277
f the two the use of the taper hob isto be preferred. 248 SCREW MACHINE TOOLS, SPEEDS AND FEEDS Spring Die Sizes The table of dimensions for spring screw dies, Fig. 4, should proyeof service, particularly for steel. For brass the cutting edge isradial, thus eliminating dimension A. The width of… … Small Sizes of Dies(Over all Dimensions Given in Sketch) D = rV f A i A No.3 4 6 8 10 12 Threads P. I. = 10 64 .003 40.012 32 .019 20 .025 18.031 56.010 40.011 32.014 24- 32 .016 24- 32 0.19 24- 32 .021 L = t\ 3^ f h i aV i 3^. t\ H f Sizes | to 1 Inch D = ftoi Hof f to I Th s P.I. = Std. Std. Std.…
Machine-shop practice
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