Visit Woodcraft.com for a large selection of wood files and wood rasps. A rasp is first used to coarsely remove wood from a round surface. Once the majority of the wood has been removed, a file is then used to smooth out the rounded surface. Rasps come in different shapes and types depending on the shape you are trying to achieve. Rasps are flat, round or half round and are divided into wood, cabinet, riffler and bastard (coarsest to finest) and are all used to make different shapes. Files are typically a long steel bar with a pointed tang on one end for a handle and an array of sharp, parallel teeth on the opposite end.