Hand-cut: Hand-cut rasps function differently from machine cut rasps. They cut faster and leave a surprisingly good work surface because of the excellent surface quality, extra sharpness, and the slightly irregular spacing of their teeth.
Use: Hand cut riffler rasps offer a long handle with two rasp-ends, which are used to work curved shapes or in places that are difficult to access. Recommended for wood, plastics as well as soapstone etc. Used mainly by mold and patternmakers and sculptors.