quadrangular section. ishing in and around depressions where an ordinary file could not be used. A stub, and holder adapted to it, is In these cuts Fig. 1 is a mill saw file; 2, flat; 3, hand; 4, | shown in figure 26. In filing large flat surfaces the tang is frequently bent as IR shown in figure… … AND HOLDER. Fig 26.—STUB In economizing the wear of files intended for general cutting the larger files in general use was not practically purposes, consideration should be given to the kind of ma- surmounted until within the past fifteen or twenty years. terial to which they are applied in the…
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