A rasp is a coarse form of file used for shaping wood, metal, or other material. Typically a hand tool, it consists of a generally tapered rectangular, round, or half-round sectioned bar of case hardened steel with distinct, individually cut teeth. A narrow, pointed tang is common at one end, to which a handle may be fitted.
Rasps are used in shaping alabaster. and are used to rough out alabaster work.
Machine made Rasps have uniformly stamped teeth. They often leave deeper marks and will require a subsequent smoothing step.
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