Fig. 2209.
Rasps differ from the single or double-cut files in that the teeth are disconnected from each other, each tooth being made by a single-pointed tool, denominated by file-makers a punch, the essential requirement being that the teeth thus formed shall be so irregularly intermingled as to produce, when put in use, the smoothest possible work consistent with the number of teeth contained in the surface of the rasp. Rasps, like files, have different degrees of coarseness, designated as “coarse,” “bastard,” “second-cut” and “smooth.” The character and general coarseness of these cuts, as found in the different sizes, are shown in [Figs. 2208] and [2209]. Generally speaking, the coarse teeth are applied to rasps used by horseshoers, the bastard to those used by carriage makers and wheelwrights, the second-cut to shoe-rasps, and the smooth to the rasps used by cabinet-makers.
[Figs. 2210], [2211] and [2212] are respectively coarse, bastard, and finishing second-cut files, the first two being for brass.
Fig. 2210.
