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 664
earance. Hollow Mill — Usually made with 3 prongs or cutting edges andwith a slight taper inside toward therear. A clamp collar is used on milllike a spring die collar and a reason-able amount of adjustment may be ob-tained by this collar. Hollow millsare frequently used in place of boxtools for… … round stock and the cutters carried inthe frame form and point the end. Revolving Die Holder — The common type of revolving die holderwhich is generally used with spring dies, has a pair of drivingpins behind the head and in the flangeof the sleeve which fits into the turrethole. At the rear end of…
Machine-shop practice
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