Compton, Alfred G. (Alfred George), 1835-1913 · New York : J. Wiley & Sons · leaf 150
136 FIE8T LESSONS IN METAL-WOBKING. sure while it is being drawn back, as heavy pres- sure on the backs of the teeth breaks them off. It is not necessary, however, to lift the file from the work, but only to lessen the pressure. 5. The teeth of the file should be kept clean. They are apt to become… … A Fig. 75. the dust cut off, which must then be removed. This can be done in several ways. The "pins" may be pushed out with a pointed steel wire. Fig. 7 5, A. They may be brushed out with a wire file- brush, B, of fine brass or steel wire, bound into a bundle with the ends projecting; or they may…
Metal-work
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
