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 274
erfastened to a perfectly smooth board. Never use turpentine on an oilstone for any purpose. SCREW MACHINE TOOLS, SPEEDSAND FEEDS BOX TOOLS AND CUTTERS The general principles of two types of box tools using respectivelytangent and radial cutters are represented in Figs, i and 2. Theformer type is… … Fig. ■Roughing Box Tool withTangent Cutter cen degrees, with the front of the box, thus giving the desired rakeat the cutting point. Finishing cutters of the type in Fig. 2 areStraight on the end, located square with the work and ordinarilyground as indicated to give 7 to 10 degrees front clearance…
Machine-shop practice
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