Abstract: Apparatus is disclosed for the surface sanding and fine finishing of contoured workpieces of wood or other similar fibrous material. A rotatable disc-like member having a contoured working surface is provided with surface recesses to accommodate a mating spider which affixes a sheet of abrasive material to the working surface. By matching the contour of the working surface with that of the workpiece, rotational contact results in a fine finish, especially in end-grain areas.